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- Committer: Teddy Hogeborn
- Date: 2016-03-17 20:40:55 UTC
- Revision ID: teddy@recompile.se-20160317204055-bhsh5xsidq7w5cxu
Client: Fix plymouth agent; broken since 1.7.2.
Fix an very old memory bug in the plymouth agent (which has been
present since its apperance in version 1.2), but which was only
recently detected at run time due to the new -fsanitize=address
compile- time flag, which has been used since version 1.7.2. This
detection of a memory access violation causes the program to abort,
making the Plymouth graphical boot system unable to accept interactive
input of passwords when using the Mandos client.
* plugins.d/plymouth.c (exec_and_wait): Fix memory allocation bug when
allocating new_argv. Also tolerate a zero-length argv.
Fix an very old memory bug in the plymouth agent (which has been
present since its apperance in version 1.2), but which was only
recently detected at run time due to the new -fsanitize=address
compile- time flag, which has been used since version 1.7.2. This
detection of a memory access violation causes the program to abort,
making the Plymouth graphical boot system unable to accept interactive
input of passwords when using the Mandos client.
* plugins.d/plymouth.c (exec_and_wait): Fix memory allocation bug when
allocating new_argv. Also tolerate a zero-length argv.
added
removed
mandos
11
11
# "AvahiService" class, and some lines in "main".
12
12
#
13
13
# Everything else is
14
# Copyright © 2008-2014 Teddy Hogeborn
15
# Copyright © 2008-2014 Björn Påhlsson
14
# Copyright © 2008-2016 Teddy Hogeborn
15
# Copyright © 2008-2016 Björn Påhlsson
16
16
#
17
17
# This program is free software: you can redistribute it and/or modify
18
18
# it under the terms of the GNU General Public License as published by
34
34
from __future__ import (division, absolute_import, print_function,
35
35
unicode_literals)
36
36
37
from future_builtins import *
37
try:
38
from future_builtins import *
39
except ImportError:
40
pass
38
41
39
import SocketServer as socketserver
42
try:
43
import SocketServer as socketserver
44
except ImportError:
45
import socketserver
40
46
import socket
41
47
import argparse
42
48
import datetime
43
49
import errno
44
import gnutls.crypto
45
import gnutls.connection
46
import gnutls.errors
47
import gnutls.library.functions
48
import gnutls.library.constants
49
import gnutls.library.types
50
import ConfigParser as configparser
50
try:
51
import ConfigParser as configparser
52
except ImportError:
53
import configparser
51
54
import sys
52
55
import re
53
56
import os
62
65
import struct
63
66
import fcntl
64
67
import functools
65
import cPickle as pickle
68
try:
69
import cPickle as pickle
70
except ImportError:
71
import pickle
66
72
import multiprocessing
67
73
import types
68
74
import binascii
69
75
import tempfile
70
76
import itertools
71
77
import collections
78
import codecs
72
79
73
80
import dbus
74
81
import dbus.service
75
import gobject
76
import avahi
82
from gi.repository import GLib
77
83
from dbus.mainloop.glib import DBusGMainLoop
78
84
import ctypes
79
85
import ctypes.util
88
94
except ImportError:
89
95
SO_BINDTODEVICE = None
90
96
91
version = "1.6.5"
97
if sys.version_info.major == 2:
98
str = unicode
99
100
version = "1.7.6"
92
101
stored_state_file = "clients.pickle"
93
102
94
103
logger = logging.getLogger()
95
104
syslogger = None
96
105
97
106
try:
98
if_nametoindex = (ctypes.cdll.LoadLibrary
99
(ctypes.util.find_library("c"))
100
.if_nametoindex)
107
if_nametoindex = ctypes.cdll.LoadLibrary(
108
ctypes.util.find_library("c")).if_nametoindex
101
109
except (OSError, AttributeError):
110
102
111
def if_nametoindex(interface):
103
112
"Get an interface index the hard way, i.e. using fcntl()"
104
113
SIOCGIFINDEX = 0x8933 # From /usr/include/linux/sockios.h
105
114
with contextlib.closing(socket.socket()) as s:
106
115
ifreq = fcntl.ioctl(s, SIOCGIFINDEX,
107
struct.pack(str("16s16x"),
108
interface))
109
interface_index = struct.unpack(str("I"),
110
ifreq[16:20])[0]
116
struct.pack(b"16s16x", interface))
117
interface_index = struct.unpack("I", ifreq[16:20])[0]
111
118
return interface_index
112
119
113
120
121
def copy_function(func):
122
"""Make a copy of a function"""
123
if sys.version_info.major == 2:
124
return types.FunctionType(func.func_code,
125
func.func_globals,
126
func.func_name,
127
func.func_defaults,
128
func.func_closure)
129
else:
130
return types.FunctionType(func.__code__,
131
func.__globals__,
132
func.__name__,
133
func.__defaults__,
134
func.__closure__)
135
136
114
137
def initlogger(debug, level=logging.WARNING):
115
138
"""init logger and add loglevel"""
116
139
117
140
global syslogger
118
syslogger = (logging.handlers.SysLogHandler
119
(facility =
120
logging.handlers.SysLogHandler.LOG_DAEMON,
121
address = str("/dev/log")))
141
syslogger = (logging.handlers.SysLogHandler(
142
facility = logging.handlers.SysLogHandler.LOG_DAEMON,
143
address = "/dev/log"))
122
144
syslogger.setFormatter(logging.Formatter
123
145
('Mandos [%(process)d]: %(levelname)s:'
124
146
' %(message)s'))
141
163
142
164
class PGPEngine(object):
143
165
"""A simple class for OpenPGP symmetric encryption & decryption"""
166
144
167
def __init__(self):
145
168
self.tempdir = tempfile.mkdtemp(prefix="mandos-")
169
self.gpg = "gpg"
170
try:
171
output = subprocess.check_output(["gpgconf"])
172
for line in output.splitlines():
173
name, text, path = line.split(b":")
174
if name == "gpg":
175
self.gpg = path
176
break
177
except OSError as e:
178
if e.errno != errno.ENOENT:
179
raise
146
180
self.gnupgargs = ['--batch',
147
'--home', self.tempdir,
181
'--homedir', self.tempdir,
148
182
'--force-mdc',
149
183
'--quiet',
150
184
'--no-use-agent']
185
219
186
220
def encrypt(self, data, password):
187
221
passphrase = self.password_encode(password)
188
with tempfile.NamedTemporaryFile(dir=self.tempdir
189
) as passfile:
222
with tempfile.NamedTemporaryFile(
223
dir=self.tempdir) as passfile:
190
224
passfile.write(passphrase)
191
225
passfile.flush()
192
proc = subprocess.Popen(['gpg', '--symmetric',
226
proc = subprocess.Popen([self.gpg, '--symmetric',
193
227
'--passphrase-file',
194
228
passfile.name]
195
229
+ self.gnupgargs,
203
237
204
238
def decrypt(self, data, password):
205
239
passphrase = self.password_encode(password)
206
with tempfile.NamedTemporaryFile(dir = self.tempdir
207
) as passfile:
240
with tempfile.NamedTemporaryFile(
241
dir = self.tempdir) as passfile:
208
242
passfile.write(passphrase)
209
243
passfile.flush()
210
proc = subprocess.Popen(['gpg', '--decrypt',
244
proc = subprocess.Popen([self.gpg, '--decrypt',
211
245
'--passphrase-file',
212
246
passfile.name]
213
247
+ self.gnupgargs,
214
248
stdin = subprocess.PIPE,
215
249
stdout = subprocess.PIPE,
216
250
stderr = subprocess.PIPE)
217
decrypted_plaintext, err = proc.communicate(input
218
= data)
251
decrypted_plaintext, err = proc.communicate(input = data)
219
252
if proc.returncode != 0:
220
253
raise PGPError(err)
221
254
return decrypted_plaintext
222
255
256
# Pretend that we have an Avahi module
257
class Avahi(object):
258
"""This isn't so much a class as it is a module-like namespace.
259
It is instantiated once, and simulates having an Avahi module."""
260
IF_UNSPEC = -1 # avahi-common/address.h
261
PROTO_UNSPEC = -1 # avahi-common/address.h
262
PROTO_INET = 0 # avahi-common/address.h
263
PROTO_INET6 = 1 # avahi-common/address.h
264
DBUS_NAME = "org.freedesktop.Avahi"
265
DBUS_INTERFACE_ENTRY_GROUP = DBUS_NAME + ".EntryGroup"
266
DBUS_INTERFACE_SERVER = DBUS_NAME + ".Server"
267
DBUS_PATH_SERVER = "/"
268
def string_array_to_txt_array(self, t):
269
return dbus.Array((dbus.ByteArray(s.encode("utf-8"))
270
for s in t), signature="ay")
271
ENTRY_GROUP_ESTABLISHED = 2 # avahi-common/defs.h
272
ENTRY_GROUP_COLLISION = 3 # avahi-common/defs.h
273
ENTRY_GROUP_FAILURE = 4 # avahi-common/defs.h
274
SERVER_INVALID = 0 # avahi-common/defs.h
275
SERVER_REGISTERING = 1 # avahi-common/defs.h
276
SERVER_RUNNING = 2 # avahi-common/defs.h
277
SERVER_COLLISION = 3 # avahi-common/defs.h
278
SERVER_FAILURE = 4 # avahi-common/defs.h
279
avahi = Avahi()
223
280
224
281
class AvahiError(Exception):
225
282
def __init__(self, value, *args, **kwargs):
226
283
self.value = value
227
super(AvahiError, self).__init__(value, *args, **kwargs)
228
def __unicode__(self):
229
return unicode(repr(self.value))
284
return super(AvahiError, self).__init__(value, *args,
285
**kwargs)
286
230
287
231
288
class AvahiServiceError(AvahiError):
232
289
pass
233
290
291
234
292
class AvahiGroupError(AvahiError):
235
293
pass
236
294
256
314
bus: dbus.SystemBus()
257
315
"""
258
316
259
def __init__(self, interface = avahi.IF_UNSPEC, name = None,
260
servicetype = None, port = None, TXT = None,
261
domain = "", host = "", max_renames = 32768,
262
protocol = avahi.PROTO_UNSPEC, bus = None):
317
def __init__(self,
318
interface = avahi.IF_UNSPEC,
319
name = None,
320
servicetype = None,
321
port = None,
322
TXT = None,
323
domain = "",
324
host = "",
325
max_renames = 32768,
326
protocol = avahi.PROTO_UNSPEC,
327
bus = None):
263
328
self.interface = interface
264
329
self.name = name
265
330
self.type = servicetype
275
340
self.bus = bus
276
341
self.entry_group_state_changed_match = None
277
342
278
def rename(self):
343
def rename(self, remove=True):
279
344
"""Derived from the Avahi example code"""
280
345
if self.rename_count >= self.max_renames:
281
346
logger.critical("No suitable Zeroconf service name found"
282
347
" after %i retries, exiting.",
283
348
self.rename_count)
284
349
raise AvahiServiceError("Too many renames")
285
self.name = unicode(self.server
286
.GetAlternativeServiceName(self.name))
350
self.name = str(
351
self.server.GetAlternativeServiceName(self.name))
352
self.rename_count += 1
287
353
logger.info("Changing Zeroconf service name to %r ...",
288
354
self.name)
289
self.remove()
355
if remove:
356
self.remove()
290
357
try:
291
358
self.add()
292
359
except dbus.exceptions.DBusException as error:
293
logger.critical("D-Bus Exception", exc_info=error)
294
self.cleanup()
295
os._exit(1)
296
self.rename_count += 1
360
if (error.get_dbus_name()
361
== "org.freedesktop.Avahi.CollisionError"):
362
logger.info("Local Zeroconf service name collision.")
363
return self.rename(remove=False)
364
else:
365
logger.critical("D-Bus Exception", exc_info=error)
366
self.cleanup()
367
os._exit(1)
297
368
298
369
def remove(self):
299
370
"""Derived from the Avahi example code"""
337
408
self.rename()
338
409
elif state == avahi.ENTRY_GROUP_FAILURE:
339
410
logger.critical("Avahi: Error in group state changed %s",
340
unicode(error))
341
raise AvahiGroupError("State changed: {0!s}"
342
.format(error))
411
str(error))
412
raise AvahiGroupError("State changed: {!s}".format(error))
343
413
344
414
def cleanup(self):
345
415
"""Derived from the Avahi example code"""
355
425
def server_state_changed(self, state, error=None):
356
426
"""Derived from the Avahi example code"""
357
427
logger.debug("Avahi server state change: %i", state)
358
bad_states = { avahi.SERVER_INVALID:
359
"Zeroconf server invalid",
360
avahi.SERVER_REGISTERING: None,
361
avahi.SERVER_COLLISION:
362
"Zeroconf server name collision",
363
avahi.SERVER_FAILURE:
364
"Zeroconf server failure" }
428
bad_states = {
429
avahi.SERVER_INVALID: "Zeroconf server invalid",
430
avahi.SERVER_REGISTERING: None,
431
avahi.SERVER_COLLISION: "Zeroconf server name collision",
432
avahi.SERVER_FAILURE: "Zeroconf server failure",
433
}
365
434
if state in bad_states:
366
435
if bad_states[state] is not None:
367
436
if error is None:
370
439
logger.error(bad_states[state] + ": %r", error)
371
440
self.cleanup()
372
441
elif state == avahi.SERVER_RUNNING:
373
self.add()
442
try:
443
self.add()
444
except dbus.exceptions.DBusException as error:
445
if (error.get_dbus_name()
446
== "org.freedesktop.Avahi.CollisionError"):
447
logger.info("Local Zeroconf service name"
448
" collision.")
449
return self.rename(remove=False)
450
else:
451
logger.critical("D-Bus Exception", exc_info=error)
452
self.cleanup()
453
os._exit(1)
374
454
else:
375
455
if error is None:
376
456
logger.debug("Unknown state: %r", state)
386
466
follow_name_owner_changes=True),
387
467
avahi.DBUS_INTERFACE_SERVER)
388
468
self.server.connect_to_signal("StateChanged",
389
self.server_state_changed)
469
self.server_state_changed)
390
470
self.server_state_changed(self.server.GetState())
391
471
392
472
393
473
class AvahiServiceToSyslog(AvahiService):
394
def rename(self):
474
def rename(self, *args, **kwargs):
395
475
"""Add the new name to the syslog messages"""
396
ret = AvahiService.rename(self)
397
syslogger.setFormatter(logging.Formatter
398
('Mandos ({0}) [%(process)d]:'
399
' %(levelname)s: %(message)s'
400
.format(self.name)))
476
ret = AvahiService.rename(self, *args, **kwargs)
477
syslogger.setFormatter(logging.Formatter(
478
'Mandos ({}) [%(process)d]: %(levelname)s: %(message)s'
479
.format(self.name)))
401
480
return ret
402
481
403
404
def timedelta_to_milliseconds(td):
405
"Convert a datetime.timedelta() to milliseconds"
406
return ((td.days * 24 * 60 * 60 * 1000)
407
+ (td.seconds * 1000)
408
+ (td.microseconds // 1000))
409
482
# Pretend that we have a GnuTLS module
483
class GnuTLS(object):
484
"""This isn't so much a class as it is a module-like namespace.
485
It is instantiated once, and simulates having a GnuTLS module."""
486
487
_library = ctypes.cdll.LoadLibrary(
488
ctypes.util.find_library("gnutls"))
489
_need_version = b"3.3.0"
490
def __init__(self):
491
# Need to use class name "GnuTLS" here, since this method is
492
# called before the assignment to the "gnutls" global variable
493
# happens.
494
if GnuTLS.check_version(self._need_version) is None:
495
raise GnuTLS.Error("Needs GnuTLS {} or later"
496
.format(self._need_version))
497
498
# Unless otherwise indicated, the constants and types below are
499
# all from the gnutls/gnutls.h C header file.
500
501
# Constants
502
E_SUCCESS = 0
503
E_INTERRUPTED = -52
504
E_AGAIN = -28
505
CRT_OPENPGP = 2
506
CLIENT = 2
507
SHUT_RDWR = 0
508
CRD_CERTIFICATE = 1
509
E_NO_CERTIFICATE_FOUND = -49
510
OPENPGP_FMT_RAW = 0 # gnutls/openpgp.h
511
512
# Types
513
class session_int(ctypes.Structure):
514
_fields_ = []
515
session_t = ctypes.POINTER(session_int)
516
class certificate_credentials_st(ctypes.Structure):
517
_fields_ = []
518
certificate_credentials_t = ctypes.POINTER(
519
certificate_credentials_st)
520
certificate_type_t = ctypes.c_int
521
class datum_t(ctypes.Structure):
522
_fields_ = [('data', ctypes.POINTER(ctypes.c_ubyte)),
523
('size', ctypes.c_uint)]
524
class openpgp_crt_int(ctypes.Structure):
525
_fields_ = []
526
openpgp_crt_t = ctypes.POINTER(openpgp_crt_int)
527
openpgp_crt_fmt_t = ctypes.c_int # gnutls/openpgp.h
528
log_func = ctypes.CFUNCTYPE(None, ctypes.c_int, ctypes.c_char_p)
529
credentials_type_t = ctypes.c_int
530
transport_ptr_t = ctypes.c_void_p
531
close_request_t = ctypes.c_int
532
533
# Exceptions
534
class Error(Exception):
535
# We need to use the class name "GnuTLS" here, since this
536
# exception might be raised from within GnuTLS.__init__,
537
# which is called before the assignment to the "gnutls"
538
# global variable has happened.
539
def __init__(self, message = None, code = None, args=()):
540
# Default usage is by a message string, but if a return
541
# code is passed, convert it to a string with
542
# gnutls.strerror()
543
self.code = code
544
if message is None and code is not None:
545
message = GnuTLS.strerror(code)
546
return super(GnuTLS.Error, self).__init__(
547
message, *args)
548
549
class CertificateSecurityError(Error):
550
pass
551
552
# Classes
553
class Credentials(object):
554
def __init__(self):
555
self._c_object = gnutls.certificate_credentials_t()
556
gnutls.certificate_allocate_credentials(
557
ctypes.byref(self._c_object))
558
self.type = gnutls.CRD_CERTIFICATE
559
560
def __del__(self):
561
gnutls.certificate_free_credentials(self._c_object)
562
563
class ClientSession(object):
564
def __init__(self, socket, credentials = None):
565
self._c_object = gnutls.session_t()
566
gnutls.init(ctypes.byref(self._c_object), gnutls.CLIENT)
567
gnutls.set_default_priority(self._c_object)
568
gnutls.transport_set_ptr(self._c_object, socket.fileno())
569
gnutls.handshake_set_private_extensions(self._c_object,
570
True)
571
self.socket = socket
572
if credentials is None:
573
credentials = gnutls.Credentials()
574
gnutls.credentials_set(self._c_object, credentials.type,
575
ctypes.cast(credentials._c_object,
576
ctypes.c_void_p))
577
self.credentials = credentials
578
579
def __del__(self):
580
gnutls.deinit(self._c_object)
581
582
def handshake(self):
583
return gnutls.handshake(self._c_object)
584
585
def send(self, data):
586
data = bytes(data)
587
data_len = len(data)
588
while data_len > 0:
589
data_len -= gnutls.record_send(self._c_object,
590
data[-data_len:],
591
data_len)
592
593
def bye(self):
594
return gnutls.bye(self._c_object, gnutls.SHUT_RDWR)
595
596
# Error handling functions
597
def _error_code(result):
598
"""A function to raise exceptions on errors, suitable
599
for the 'restype' attribute on ctypes functions"""
600
if result >= 0:
601
return result
602
if result == gnutls.E_NO_CERTIFICATE_FOUND:
603
raise gnutls.CertificateSecurityError(code = result)
604
raise gnutls.Error(code = result)
605
606
def _retry_on_error(result, func, arguments):
607
"""A function to retry on some errors, suitable
608
for the 'errcheck' attribute on ctypes functions"""
609
while result < 0:
610
if result not in (gnutls.E_INTERRUPTED, gnutls.E_AGAIN):
611
return _error_code(result)
612
result = func(*arguments)
613
return result
614
615
# Unless otherwise indicated, the function declarations below are
616
# all from the gnutls/gnutls.h C header file.
617
618
# Functions
619
priority_set_direct = _library.gnutls_priority_set_direct
620
priority_set_direct.argtypes = [session_t, ctypes.c_char_p,
621
ctypes.POINTER(ctypes.c_char_p)]
622
priority_set_direct.restype = _error_code
623
624
init = _library.gnutls_init
625
init.argtypes = [ctypes.POINTER(session_t), ctypes.c_int]
626
init.restype = _error_code
627
628
set_default_priority = _library.gnutls_set_default_priority
629
set_default_priority.argtypes = [session_t]
630
set_default_priority.restype = _error_code
631
632
record_send = _library.gnutls_record_send
633
record_send.argtypes = [session_t, ctypes.c_void_p,
634
ctypes.c_size_t]
635
record_send.restype = ctypes.c_ssize_t
636
record_send.errcheck = _retry_on_error
637
638
certificate_allocate_credentials = (
639
_library.gnutls_certificate_allocate_credentials)
640
certificate_allocate_credentials.argtypes = [
641
ctypes.POINTER(certificate_credentials_t)]
642
certificate_allocate_credentials.restype = _error_code
643
644
certificate_free_credentials = (
645
_library.gnutls_certificate_free_credentials)
646
certificate_free_credentials.argtypes = [certificate_credentials_t]
647
certificate_free_credentials.restype = None
648
649
handshake_set_private_extensions = (
650
_library.gnutls_handshake_set_private_extensions)
651
handshake_set_private_extensions.argtypes = [session_t,
652
ctypes.c_int]
653
handshake_set_private_extensions.restype = None
654
655
credentials_set = _library.gnutls_credentials_set
656
credentials_set.argtypes = [session_t, credentials_type_t,
657
ctypes.c_void_p]
658
credentials_set.restype = _error_code
659
660
strerror = _library.gnutls_strerror
661
strerror.argtypes = [ctypes.c_int]
662
strerror.restype = ctypes.c_char_p
663
664
certificate_type_get = _library.gnutls_certificate_type_get
665
certificate_type_get.argtypes = [session_t]
666
certificate_type_get.restype = _error_code
667
668
certificate_get_peers = _library.gnutls_certificate_get_peers
669
certificate_get_peers.argtypes = [session_t,
670
ctypes.POINTER(ctypes.c_uint)]
671
certificate_get_peers.restype = ctypes.POINTER(datum_t)
672
673
global_set_log_level = _library.gnutls_global_set_log_level
674
global_set_log_level.argtypes = [ctypes.c_int]
675
global_set_log_level.restype = None
676
677
global_set_log_function = _library.gnutls_global_set_log_function
678
global_set_log_function.argtypes = [log_func]
679
global_set_log_function.restype = None
680
681
deinit = _library.gnutls_deinit
682
deinit.argtypes = [session_t]
683
deinit.restype = None
684
685
handshake = _library.gnutls_handshake
686
handshake.argtypes = [session_t]
687
handshake.restype = _error_code
688
handshake.errcheck = _retry_on_error
689
690
transport_set_ptr = _library.gnutls_transport_set_ptr
691
transport_set_ptr.argtypes = [session_t, transport_ptr_t]
692
transport_set_ptr.restype = None
693
694
bye = _library.gnutls_bye
695
bye.argtypes = [session_t, close_request_t]
696
bye.restype = _error_code
697
bye.errcheck = _retry_on_error
698
699
check_version = _library.gnutls_check_version
700
check_version.argtypes = [ctypes.c_char_p]
701
check_version.restype = ctypes.c_char_p
702
703
# All the function declarations below are from gnutls/openpgp.h
704
705
openpgp_crt_init = _library.gnutls_openpgp_crt_init
706
openpgp_crt_init.argtypes = [ctypes.POINTER(openpgp_crt_t)]
707
openpgp_crt_init.restype = _error_code
708
709
openpgp_crt_import = _library.gnutls_openpgp_crt_import
710
openpgp_crt_import.argtypes = [openpgp_crt_t,
711
ctypes.POINTER(datum_t),
712
openpgp_crt_fmt_t]
713
openpgp_crt_import.restype = _error_code
714
715
openpgp_crt_verify_self = _library.gnutls_openpgp_crt_verify_self
716
openpgp_crt_verify_self.argtypes = [openpgp_crt_t, ctypes.c_uint,
717
ctypes.POINTER(ctypes.c_uint)]
718
openpgp_crt_verify_self.restype = _error_code
719
720
openpgp_crt_deinit = _library.gnutls_openpgp_crt_deinit
721
openpgp_crt_deinit.argtypes = [openpgp_crt_t]
722
openpgp_crt_deinit.restype = None
723
724
openpgp_crt_get_fingerprint = (
725
_library.gnutls_openpgp_crt_get_fingerprint)
726
openpgp_crt_get_fingerprint.argtypes = [openpgp_crt_t,
727
ctypes.c_void_p,
728
ctypes.POINTER(
729
ctypes.c_size_t)]
730
openpgp_crt_get_fingerprint.restype = _error_code
731
732
# Remove non-public functions
733
del _error_code, _retry_on_error
734
# Create the global "gnutls" object, simulating a module
735
gnutls = GnuTLS()
736
737
def call_pipe(connection, # : multiprocessing.Connection
738
func, *args, **kwargs):
739
"""This function is meant to be called by multiprocessing.Process
740
741
This function runs func(*args, **kwargs), and writes the resulting
742
return value on the provided multiprocessing.Connection.
743
"""
744
connection.send(func(*args, **kwargs))
745
connection.close()
410
746
411
747
class Client(object):
412
748
"""A representation of a client host served by this server.
418
754
checker: subprocess.Popen(); a running checker process used
419
755
to see if the client lives.
420
756
'None' if no process is running.
421
checker_callback_tag: a gobject event source tag, or None
757
checker_callback_tag: a GLib event source tag, or None
422
758
checker_command: string; External command which is run to check
423
759
if client lives. %() expansions are done at
424
760
runtime with vars(self) as dict, so that for
425
761
instance %(name)s can be used in the command.
426
checker_initiator_tag: a gobject event source tag, or None
762
checker_initiator_tag: a GLib event source tag, or None
427
763
created: datetime.datetime(); (UTC) object creation
428
764
client_structure: Object describing what attributes a client has
429
765
and is used for storing the client at exit
430
766
current_checker_command: string; current running checker_command
431
disable_initiator_tag: a gobject event source tag, or None
767
disable_initiator_tag: a GLib event source tag, or None
432
768
enabled: bool()
433
769
fingerprint: string (40 or 32 hexadecimal digits); used to
434
770
uniquely identify the client
439
775
last_checker_status: integer between 0 and 255 reflecting exit
440
776
status of last checker. -1 reflects crashed
441
777
checker, -2 means no checker completed yet.
778
last_checker_signal: The signal which killed the last checker, if
779
last_checker_status is -1
442
780
last_enabled: datetime.datetime(); (UTC) or None
443
781
name: string; from the config file, used in log messages and
444
782
D-Bus identifiers
457
795
"fingerprint", "host", "interval",
458
796
"last_approval_request", "last_checked_ok",
459
797
"last_enabled", "name", "timeout")
460
client_defaults = { "timeout": "PT5M",
461
"extended_timeout": "PT15M",
462
"interval": "PT2M",
463
"checker": "fping -q -- %%(host)s",
464
"host": "",
465
"approval_delay": "PT0S",
466
"approval_duration": "PT1S",
467
"approved_by_default": "True",
468
"enabled": "True",
469
}
470
471
def timeout_milliseconds(self):
472
"Return the 'timeout' attribute in milliseconds"
473
return timedelta_to_milliseconds(self.timeout)
474
475
def extended_timeout_milliseconds(self):
476
"Return the 'extended_timeout' attribute in milliseconds"
477
return timedelta_to_milliseconds(self.extended_timeout)
478
479
def interval_milliseconds(self):
480
"Return the 'interval' attribute in milliseconds"
481
return timedelta_to_milliseconds(self.interval)
482
483
def approval_delay_milliseconds(self):
484
return timedelta_to_milliseconds(self.approval_delay)
798
client_defaults = {
799
"timeout": "PT5M",
800
"extended_timeout": "PT15M",
801
"interval": "PT2M",
802
"checker": "fping -q -- %%(host)s",
803
"host": "",
804
"approval_delay": "PT0S",
805
"approval_duration": "PT1S",
806
"approved_by_default": "True",
807
"enabled": "True",
808
}
485
809
486
810
@staticmethod
487
811
def config_parser(config):
503
827
client["enabled"] = config.getboolean(client_name,
504
828
"enabled")
505
829
830
# Uppercase and remove spaces from fingerprint for later
831
# comparison purposes with return value from the
832
# fingerprint() function
506
833
client["fingerprint"] = (section["fingerprint"].upper()
507
834
.replace(" ", ""))
508
835
if "secret" in section:
509
client["secret"] = section["secret"].decode("base64")
836
client["secret"] = codecs.decode(section["secret"]
837
.encode("utf-8"),
838
"base64")
510
839
elif "secfile" in section:
511
840
with open(os.path.expanduser(os.path.expandvars
512
841
(section["secfile"])),
513
842
"rb") as secfile:
514
843
client["secret"] = secfile.read()
515
844
else:
516
raise TypeError("No secret or secfile for section {0}"
845
raise TypeError("No secret or secfile for section {}"
517
846
.format(section))
518
847
client["timeout"] = string_to_delta(section["timeout"])
519
848
client["extended_timeout"] = string_to_delta(
536
865
server_settings = {}
537
866
self.server_settings = server_settings
538
867
# adding all client settings
539
for setting, value in settings.iteritems():
868
for setting, value in settings.items():
540
869
setattr(self, setting, value)
541
870
542
871
if self.enabled:
550
879
self.expires = None
551
880
552
881
logger.debug("Creating client %r", self.name)
553
# Uppercase and remove spaces from fingerprint for later
554
# comparison purposes with return value from the fingerprint()
555
# function
556
882
logger.debug(" Fingerprint: %s", self.fingerprint)
557
883
self.created = settings.get("created",
558
884
datetime.datetime.utcnow())
565
891
self.current_checker_command = None
566
892
self.approved = None
567
893
self.approvals_pending = 0
568
self.changedstate = (multiprocessing_manager
569
.Condition(multiprocessing_manager
570
.Lock()))
571
self.client_structure = [attr for attr in
572
self.__dict__.iterkeys()
894
self.changedstate = multiprocessing_manager.Condition(
895
multiprocessing_manager.Lock())
896
self.client_structure = [attr
897
for attr in self.__dict__.keys()
573
898
if not attr.startswith("_")]
574
899
self.client_structure.append("client_structure")
575
900
576
for name, t in inspect.getmembers(type(self),
577
lambda obj:
578
isinstance(obj,
579
property)):
901
for name, t in inspect.getmembers(
902
type(self), lambda obj: isinstance(obj, property)):
580
903
if not name.startswith("_"):
581
904
self.client_structure.append(name)
582
905
603
926
if not quiet:
604
927
logger.info("Disabling client %s", self.name)
605
928
if getattr(self, "disable_initiator_tag", None) is not None:
606
gobject.source_remove(self.disable_initiator_tag)
929
GLib.source_remove(self.disable_initiator_tag)
607
930
self.disable_initiator_tag = None
608
931
self.expires = None
609
932
if getattr(self, "checker_initiator_tag", None) is not None:
610
gobject.source_remove(self.checker_initiator_tag)
933
GLib.source_remove(self.checker_initiator_tag)
611
934
self.checker_initiator_tag = None
612
935
self.stop_checker()
613
936
self.enabled = False
614
937
if not quiet:
615
938
self.send_changedstate()
616
# Do not run this again if called by a gobject.timeout_add
939
# Do not run this again if called by a GLib.timeout_add
617
940
return False
618
941
619
942
def __del__(self):
623
946
# Schedule a new checker to be started an 'interval' from now,
624
947
# and every interval from then on.
625
948
if self.checker_initiator_tag is not None:
626
gobject.source_remove(self.checker_initiator_tag)
627
self.checker_initiator_tag = (gobject.timeout_add
628
(self.interval_milliseconds(),
629
self.start_checker))
949
GLib.source_remove(self.checker_initiator_tag)
950
self.checker_initiator_tag = GLib.timeout_add(
951
int(self.interval.total_seconds() * 1000),
952
self.start_checker)
630
953
# Schedule a disable() when 'timeout' has passed
631
954
if self.disable_initiator_tag is not None:
632
gobject.source_remove(self.disable_initiator_tag)
633
self.disable_initiator_tag = (gobject.timeout_add
634
(self.timeout_milliseconds(),
635
self.disable))
955
GLib.source_remove(self.disable_initiator_tag)
956
self.disable_initiator_tag = GLib.timeout_add(
957
int(self.timeout.total_seconds() * 1000), self.disable)
636
958
# Also start a new checker *right now*.
637
959
self.start_checker()
638
960
639
def checker_callback(self, pid, condition, command):
961
def checker_callback(self, source, condition, connection,
962
command):
640
963
"""The checker has completed, so take appropriate actions."""
641
964
self.checker_callback_tag = None
642
965
self.checker = None
643
if os.WIFEXITED(condition):
644
self.last_checker_status = os.WEXITSTATUS(condition)
966
# Read return code from connection (see call_pipe)
967
returncode = connection.recv()
968
connection.close()
969
970
if returncode >= 0:
971
self.last_checker_status = returncode
972
self.last_checker_signal = None
645
973
if self.last_checker_status == 0:
646
974
logger.info("Checker for %(name)s succeeded",
647
975
vars(self))
648
976
self.checked_ok()
649
977
else:
650
logger.info("Checker for %(name)s failed",
651
vars(self))
978
logger.info("Checker for %(name)s failed", vars(self))
652
979
else:
653
980
self.last_checker_status = -1
981
self.last_checker_signal = -returncode
654
982
logger.warning("Checker for %(name)s crashed?",
655
983
vars(self))
984
return False
656
985
657
986
def checked_ok(self):
658
987
"""Assert that the client has been seen, alive and well."""
659
988
self.last_checked_ok = datetime.datetime.utcnow()
660
989
self.last_checker_status = 0
990
self.last_checker_signal = None
661
991
self.bump_timeout()
662
992
663
993
def bump_timeout(self, timeout=None):
665
995
if timeout is None:
666
996
timeout = self.timeout
667
997
if self.disable_initiator_tag is not None:
668
gobject.source_remove(self.disable_initiator_tag)
998
GLib.source_remove(self.disable_initiator_tag)
669
999
self.disable_initiator_tag = None
670
1000
if getattr(self, "enabled", False):
671
self.disable_initiator_tag = (gobject.timeout_add
672
(timedelta_to_milliseconds
673
(timeout), self.disable))
1001
self.disable_initiator_tag = GLib.timeout_add(
1002
int(timeout.total_seconds() * 1000), self.disable)
674
1003
self.expires = datetime.datetime.utcnow() + timeout
675
1004
676
1005
def need_approval(self):
690
1019
# than 'timeout' for the client to be disabled, which is as it
691
1020
# should be.
692
1021
693
# If a checker exists, make sure it is not a zombie
694
try:
695
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
696
except AttributeError:
697
pass
698
except OSError as error:
699
if error.errno != errno.ECHILD:
700
raise
701
else:
702
if pid:
703
logger.warning("Checker was a zombie")
704
gobject.source_remove(self.checker_callback_tag)
705
self.checker_callback(pid, status,
706
self.current_checker_command)
1022
if self.checker is not None and not self.checker.is_alive():
1023
logger.warning("Checker was not alive; joining")
1024
self.checker.join()
1025
self.checker = None
707
1026
# Start a new checker if needed
708
1027
if self.checker is None:
709
1028
# Escape attributes for the shell
710
escaped_attrs = dict(
711
(attr, re.escape(unicode(getattr(self, attr))))
712
for attr in
713
self.runtime_expansions)
1029
escaped_attrs = {
1030
attr: re.escape(str(getattr(self, attr)))
1031
for attr in self.runtime_expansions }
714
1032
try:
715
1033
command = self.checker_command % escaped_attrs
716
1034
except TypeError as error:
717
1035
logger.error('Could not format string "%s"',
718
self.checker_command, exc_info=error)
719
return True # Try again later
1036
self.checker_command,
1037
exc_info=error)
1038
return True # Try again later
720
1039
self.current_checker_command = command
721
try:
722
logger.info("Starting checker %r for %s",
723
command, self.name)
724
# We don't need to redirect stdout and stderr, since
725
# in normal mode, that is already done by daemon(),
726
# and in debug mode we don't want to. (Stdin is
727
# always replaced by /dev/null.)
728
# The exception is when not debugging but nevertheless
729
# running in the foreground; use the previously
730
# created wnull.
731
popen_args = {}
732
if (not self.server_settings["debug"]
733
and self.server_settings["foreground"]):
734
popen_args.update({"stdout": wnull,
735
"stderr": wnull })
736
self.checker = subprocess.Popen(command,
737
close_fds=True,
738
shell=True, cwd="/",
739
**popen_args)
740
except OSError as error:
741
logger.error("Failed to start subprocess",
742
exc_info=error)
743
return True
744
self.checker_callback_tag = (gobject.child_watch_add
745
(self.checker.pid,
746
self.checker_callback,
747
data=command))
748
# The checker may have completed before the gobject
749
# watch was added. Check for this.
750
try:
751
pid, status = os.waitpid(self.checker.pid, os.WNOHANG)
752
except OSError as error:
753
if error.errno == errno.ECHILD:
754
# This should never happen
755
logger.error("Child process vanished",
756
exc_info=error)
757
return True
758
raise
759
if pid:
760
gobject.source_remove(self.checker_callback_tag)
761
self.checker_callback(pid, status, command)
762
# Re-run this periodically if run by gobject.timeout_add
1040
logger.info("Starting checker %r for %s", command,
1041
self.name)
1042
# We don't need to redirect stdout and stderr, since
1043
# in normal mode, that is already done by daemon(),
1044
# and in debug mode we don't want to. (Stdin is
1045
# always replaced by /dev/null.)
1046
# The exception is when not debugging but nevertheless
1047
# running in the foreground; use the previously
1048
# created wnull.
1049
popen_args = { "close_fds": True,
1050
"shell": True,
1051
"cwd": "/" }
1052
if (not self.server_settings["debug"]
1053
and self.server_settings["foreground"]):
1054
popen_args.update({"stdout": wnull,
1055
"stderr": wnull })
1056
pipe = multiprocessing.Pipe(duplex = False)
1057
self.checker = multiprocessing.Process(
1058
target = call_pipe,
1059
args = (pipe[1], subprocess.call, command),
1060
kwargs = popen_args)
1061
self.checker.start()
1062
self.checker_callback_tag = GLib.io_add_watch(
1063
pipe[0].fileno(), GLib.IO_IN,
1064
self.checker_callback, pipe[0], command)
1065
# Re-run this periodically if run by GLib.timeout_add
763
1066
return True
764
1067
765
1068
def stop_checker(self):
766
1069
"""Force the checker process, if any, to stop."""
767
1070
if self.checker_callback_tag:
768
gobject.source_remove(self.checker_callback_tag)
1071
GLib.source_remove(self.checker_callback_tag)
769
1072
self.checker_callback_tag = None
770
1073
if getattr(self, "checker", None) is None:
771
1074
return
772
1075
logger.debug("Stopping checker for %(name)s", vars(self))
773
try:
774
self.checker.terminate()
775
#time.sleep(0.5)
776
#if self.checker.poll() is None:
777
# self.checker.kill()
778
except OSError as error:
779
if error.errno != errno.ESRCH: # No such process
780
raise
1076
self.checker.terminate()
781
1077
self.checker = None
782
1078
783
1079
784
def dbus_service_property(dbus_interface, signature="v",
785
access="readwrite", byte_arrays=False):
1080
def dbus_service_property(dbus_interface,
1081
signature="v",
1082
access="readwrite",
1083
byte_arrays=False):
786
1084
"""Decorators for marking methods of a DBusObjectWithProperties to
787
1085
become properties on the D-Bus.
788
1086
797
1095
# "Set" method, so we fail early here:
798
1096
if byte_arrays and signature != "ay":
799
1097
raise ValueError("Byte arrays not supported for non-'ay'"
800
" signature {0!r}".format(signature))
1098
" signature {!r}".format(signature))
1099
801
1100
def decorator(func):
802
1101
func._dbus_is_property = True
803
1102
func._dbus_interface = dbus_interface
808
1107
func._dbus_name = func._dbus_name[:-14]
809
1108
func._dbus_get_args_options = {'byte_arrays': byte_arrays }
810
1109
return func
1110
811
1111
return decorator
812
1112
813
1113
822
1122
"org.freedesktop.DBus.Property.EmitsChangedSignal":
823
1123
"false"}
824
1124
"""
1125
825
1126
def decorator(func):
826
1127
func._dbus_is_interface = True
827
1128
func._dbus_interface = dbus_interface
828
1129
func._dbus_name = dbus_interface
829
1130
return func
1131
830
1132
return decorator
831
1133
832
1134
834
1136
"""Decorator to annotate D-Bus methods, signals or properties
835
1137
Usage:
836
1138
1139
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true",
1140
"org.freedesktop.DBus.Property."
1141
"EmitsChangedSignal": "false"})
837
1142
@dbus_service_property("org.example.Interface", signature="b",
838
1143
access="r")
839
@dbus_annotations({{"org.freedesktop.DBus.Deprecated": "true",
840
"org.freedesktop.DBus.Property."
841
"EmitsChangedSignal": "false"})
842
1144
def Property_dbus_property(self):
843
1145
return dbus.Boolean(False)
1146
1147
See also the DBusObjectWithAnnotations class.
844
1148
"""
1149
845
1150
def decorator(func):
846
1151
func._dbus_annotations = annotations
847
1152
return func
1153
848
1154
return decorator
849
1155
850
1156
851
1157
class DBusPropertyException(dbus.exceptions.DBusException):
852
1158
"""A base class for D-Bus property-related exceptions
853
1159
"""
854
def __unicode__(self):
855
return unicode(str(self))
1160
pass
856
1161
857
1162
858
1163
class DBusPropertyAccessException(DBusPropertyException):
867
1172
pass
868
1173
869
1174
870
class DBusObjectWithProperties(dbus.service.Object):
871
"""A D-Bus object with properties.
1175
class DBusObjectWithAnnotations(dbus.service.Object):
1176
"""A D-Bus object with annotations.
872
1177
873
Classes inheriting from this can use the dbus_service_property
874
decorator to expose methods as D-Bus properties. It exposes the
875
standard Get(), Set(), and GetAll() methods on the D-Bus.
1178
Classes inheriting from this can use the dbus_annotations
1179
decorator to add annotations to methods or signals.
876
1180
"""
877
1181
878
1182
@staticmethod
882
1186
If called like _is_dbus_thing("method") it returns a function
883
1187
suitable for use as predicate to inspect.getmembers().
884
1188
"""
885
return lambda obj: getattr(obj, "_dbus_is_{0}".format(thing),
1189
return lambda obj: getattr(obj, "_dbus_is_{}".format(thing),
886
1190
False)
887
1191
888
1192
def _get_all_dbus_things(self, thing):
889
1193
"""Returns a generator of (name, attribute) pairs
890
1194
"""
891
return ((getattr(athing.__get__(self), "_dbus_name",
892
name),
1195
return ((getattr(athing.__get__(self), "_dbus_name", name),
893
1196
athing.__get__(self))
894
1197
for cls in self.__class__.__mro__
895
1198
for name, athing in
896
inspect.getmembers(cls,
897
self._is_dbus_thing(thing)))
1199
inspect.getmembers(cls, self._is_dbus_thing(thing)))
1200
1201
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1202
out_signature = "s",
1203
path_keyword = 'object_path',
1204
connection_keyword = 'connection')
1205
def Introspect(self, object_path, connection):
1206
"""Overloading of standard D-Bus method.
1207
1208
Inserts annotation tags on methods and signals.
1209
"""
1210
xmlstring = dbus.service.Object.Introspect(self, object_path,
1211
connection)
1212
try:
1213
document = xml.dom.minidom.parseString(xmlstring)
1214
1215
for if_tag in document.getElementsByTagName("interface"):
1216
# Add annotation tags
1217
for typ in ("method", "signal"):
1218
for tag in if_tag.getElementsByTagName(typ):
1219
annots = dict()
1220
for name, prop in (self.
1221
_get_all_dbus_things(typ)):
1222
if (name == tag.getAttribute("name")
1223
and prop._dbus_interface
1224
== if_tag.getAttribute("name")):
1225
annots.update(getattr(
1226
prop, "_dbus_annotations", {}))
1227
for name, value in annots.items():
1228
ann_tag = document.createElement(
1229
"annotation")
1230
ann_tag.setAttribute("name", name)
1231
ann_tag.setAttribute("value", value)
1232
tag.appendChild(ann_tag)
1233
# Add interface annotation tags
1234
for annotation, value in dict(
1235
itertools.chain.from_iterable(
1236
annotations().items()
1237
for name, annotations
1238
in self._get_all_dbus_things("interface")
1239
if name == if_tag.getAttribute("name")
1240
)).items():
1241
ann_tag = document.createElement("annotation")
1242
ann_tag.setAttribute("name", annotation)
1243
ann_tag.setAttribute("value", value)
1244
if_tag.appendChild(ann_tag)
1245
# Fix argument name for the Introspect method itself
1246
if (if_tag.getAttribute("name")
1247
== dbus.INTROSPECTABLE_IFACE):
1248
for cn in if_tag.getElementsByTagName("method"):
1249
if cn.getAttribute("name") == "Introspect":
1250
for arg in cn.getElementsByTagName("arg"):
1251
if (arg.getAttribute("direction")
1252
== "out"):
1253
arg.setAttribute("name",
1254
"xml_data")
1255
xmlstring = document.toxml("utf-8")
1256
document.unlink()
1257
except (AttributeError, xml.dom.DOMException,
1258
xml.parsers.expat.ExpatError) as error:
1259
logger.error("Failed to override Introspection method",
1260
exc_info=error)
1261
return xmlstring
1262
1263
1264
class DBusObjectWithProperties(DBusObjectWithAnnotations):
1265
"""A D-Bus object with properties.
1266
1267
Classes inheriting from this can use the dbus_service_property
1268
decorator to expose methods as D-Bus properties. It exposes the
1269
standard Get(), Set(), and GetAll() methods on the D-Bus.
1270
"""
898
1271
899
1272
def _get_dbus_property(self, interface_name, property_name):
900
1273
"""Returns a bound method if one exists which is a D-Bus
901
1274
property with the specified name and interface.
902
1275
"""
903
for cls in self.__class__.__mro__:
904
for name, value in (inspect.getmembers
905
(cls,
906
self._is_dbus_thing("property"))):
1276
for cls in self.__class__.__mro__:
1277
for name, value in inspect.getmembers(
1278
cls, self._is_dbus_thing("property")):
907
1279
if (value._dbus_name == property_name
908
1280
and value._dbus_interface == interface_name):
909
1281
return value.__get__(self)
910
1282
911
1283
# No such property
912
raise DBusPropertyNotFound(self.dbus_object_path + ":"
913
+ interface_name + "."
914
+ property_name)
915
916
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="ss",
1284
raise DBusPropertyNotFound("{}:{}.{}".format(
1285
self.dbus_object_path, interface_name, property_name))
1286
1287
@classmethod
1288
def _get_all_interface_names(cls):
1289
"""Get a sequence of all interfaces supported by an object"""
1290
return (name for name in set(getattr(getattr(x, attr),
1291
"_dbus_interface", None)
1292
for x in (inspect.getmro(cls))
1293
for attr in dir(x))
1294
if name is not None)
1295
1296
@dbus.service.method(dbus.PROPERTIES_IFACE,
1297
in_signature="ss",
917
1298
out_signature="v")
918
1299
def Get(self, interface_name, property_name):
919
1300
"""Standard D-Bus property Get() method, see D-Bus standard.
938
1319
# signatures other than "ay".
939
1320
if prop._dbus_signature != "ay":
940
1321
raise ValueError("Byte arrays not supported for non-"
941
"'ay' signature {0!r}"
1322
"'ay' signature {!r}"
942
1323
.format(prop._dbus_signature))
943
1324
value = dbus.ByteArray(b''.join(chr(byte)
944
1325
for byte in value))
945
1326
prop(value)
946
1327
947
@dbus.service.method(dbus.PROPERTIES_IFACE, in_signature="s",
1328
@dbus.service.method(dbus.PROPERTIES_IFACE,
1329
in_signature="s",
948
1330
out_signature="a{sv}")
949
1331
def GetAll(self, interface_name):
950
1332
"""Standard D-Bus property GetAll() method, see D-Bus
965
1347
if not hasattr(value, "variant_level"):
966
1348
properties[name] = value
967
1349
continue
968
properties[name] = type(value)(value, variant_level=
969
value.variant_level+1)
1350
properties[name] = type(value)(
1351
value, variant_level = value.variant_level + 1)
970
1352
return dbus.Dictionary(properties, signature="sv")
971
1353
1354
@dbus.service.signal(dbus.PROPERTIES_IFACE, signature="sa{sv}as")
1355
def PropertiesChanged(self, interface_name, changed_properties,
1356
invalidated_properties):
1357
"""Standard D-Bus PropertiesChanged() signal, see D-Bus
1358
standard.
1359
"""
1360
pass
1361
972
1362
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
973
1363
out_signature="s",
974
1364
path_keyword='object_path',
978
1368
979
1369
Inserts property tags and interface annotation tags.
980
1370
"""
981
xmlstring = dbus.service.Object.Introspect(self, object_path,
982
connection)
1371
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1372
object_path,
1373
connection)
983
1374
try:
984
1375
document = xml.dom.minidom.parseString(xmlstring)
1376
985
1377
def make_tag(document, name, prop):
986
1378
e = document.createElement("property")
987
1379
e.setAttribute("name", name)
988
1380
e.setAttribute("type", prop._dbus_signature)
989
1381
e.setAttribute("access", prop._dbus_access)
990
1382
return e
1383
991
1384
for if_tag in document.getElementsByTagName("interface"):
992
1385
# Add property tags
993
1386
for tag in (make_tag(document, name, prop)
996
1389
if prop._dbus_interface
997
1390
== if_tag.getAttribute("name")):
998
1391
if_tag.appendChild(tag)
999
# Add annotation tags
1000
for typ in ("method", "signal", "property"):
1001
for tag in if_tag.getElementsByTagName(typ):
1002
annots = dict()
1003
for name, prop in (self.
1004
_get_all_dbus_things(typ)):
1005
if (name == tag.getAttribute("name")
1006
and prop._dbus_interface
1007
== if_tag.getAttribute("name")):
1008
annots.update(getattr
1009
(prop,
1010
"_dbus_annotations",
1011
{}))
1012
for name, value in annots.iteritems():
1013
ann_tag = document.createElement(
1014
"annotation")
1015
ann_tag.setAttribute("name", name)
1016
ann_tag.setAttribute("value", value)
1017
tag.appendChild(ann_tag)
1018
# Add interface annotation tags
1019
for annotation, value in dict(
1020
itertools.chain.from_iterable(
1021
annotations().iteritems()
1022
for name, annotations in
1023
self._get_all_dbus_things("interface")
1024
if name == if_tag.getAttribute("name")
1025
)).iteritems():
1026
ann_tag = document.createElement("annotation")
1027
ann_tag.setAttribute("name", annotation)
1028
ann_tag.setAttribute("value", value)
1029
if_tag.appendChild(ann_tag)
1392
# Add annotation tags for properties
1393
for tag in if_tag.getElementsByTagName("property"):
1394
annots = dict()
1395
for name, prop in self._get_all_dbus_things(
1396
"property"):
1397
if (name == tag.getAttribute("name")
1398
and prop._dbus_interface
1399
== if_tag.getAttribute("name")):
1400
annots.update(getattr(
1401
prop, "_dbus_annotations", {}))
1402
for name, value in annots.items():
1403
ann_tag = document.createElement(
1404
"annotation")
1405
ann_tag.setAttribute("name", name)
1406
ann_tag.setAttribute("value", value)
1407
tag.appendChild(ann_tag)
1030
1408
# Add the names to the return values for the
1031
1409
# "org.freedesktop.DBus.Properties" methods
1032
1410
if (if_tag.getAttribute("name")
1050
1428
exc_info=error)
1051
1429
return xmlstring
1052
1430
1431
try:
1432
dbus.OBJECT_MANAGER_IFACE
1433
except AttributeError:
1434
dbus.OBJECT_MANAGER_IFACE = "org.freedesktop.DBus.ObjectManager"
1435
1436
class DBusObjectWithObjectManager(DBusObjectWithAnnotations):
1437
"""A D-Bus object with an ObjectManager.
1438
1439
Classes inheriting from this exposes the standard
1440
GetManagedObjects call and the InterfacesAdded and
1441
InterfacesRemoved signals on the standard
1442
"org.freedesktop.DBus.ObjectManager" interface.
1443
1444
Note: No signals are sent automatically; they must be sent
1445
manually.
1446
"""
1447
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
1448
out_signature = "a{oa{sa{sv}}}")
1449
def GetManagedObjects(self):
1450
"""This function must be overridden"""
1451
raise NotImplementedError()
1452
1453
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE,
1454
signature = "oa{sa{sv}}")
1455
def InterfacesAdded(self, object_path, interfaces_and_properties):
1456
pass
1457
1458
@dbus.service.signal(dbus.OBJECT_MANAGER_IFACE, signature = "oas")
1459
def InterfacesRemoved(self, object_path, interfaces):
1460
pass
1461
1462
@dbus.service.method(dbus.INTROSPECTABLE_IFACE,
1463
out_signature = "s",
1464
path_keyword = 'object_path',
1465
connection_keyword = 'connection')
1466
def Introspect(self, object_path, connection):
1467
"""Overloading of standard D-Bus method.
1468
1469
Override return argument name of GetManagedObjects to be
1470
"objpath_interfaces_and_properties"
1471
"""
1472
xmlstring = DBusObjectWithAnnotations.Introspect(self,
1473
object_path,
1474
connection)
1475
try:
1476
document = xml.dom.minidom.parseString(xmlstring)
1477
1478
for if_tag in document.getElementsByTagName("interface"):
1479
# Fix argument name for the GetManagedObjects method
1480
if (if_tag.getAttribute("name")
1481
== dbus.OBJECT_MANAGER_IFACE):
1482
for cn in if_tag.getElementsByTagName("method"):
1483
if (cn.getAttribute("name")
1484
== "GetManagedObjects"):
1485
for arg in cn.getElementsByTagName("arg"):
1486
if (arg.getAttribute("direction")
1487
== "out"):
1488
arg.setAttribute(
1489
"name",
1490
"objpath_interfaces"
1491
"_and_properties")
1492
xmlstring = document.toxml("utf-8")
1493
document.unlink()
1494
except (AttributeError, xml.dom.DOMException,
1495
xml.parsers.expat.ExpatError) as error:
1496
logger.error("Failed to override Introspection method",
1497
exc_info = error)
1498
return xmlstring
1053
1499
1054
1500
def datetime_to_dbus(dt, variant_level=0):
1055
1501
"""Convert a UTC datetime.datetime() to a D-Bus type."""
1056
1502
if dt is None:
1057
1503
return dbus.String("", variant_level = variant_level)
1058
return dbus.String(dt.isoformat(),
1059
variant_level=variant_level)
1504
return dbus.String(dt.isoformat(), variant_level=variant_level)
1060
1505
1061
1506
1062
1507
def alternate_dbus_interfaces(alt_interface_names, deprecate=True):
1082
1527
(from DBusObjectWithProperties) and interfaces (from the
1083
1528
dbus_interface_annotations decorator).
1084
1529
"""
1530
1085
1531
def wrapper(cls):
1086
1532
for orig_interface_name, alt_interface_name in (
1087
alt_interface_names.iteritems()):
1533
alt_interface_names.items()):
1088
1534
attr = {}
1089
1535
interface_names = set()
1090
1536
# Go though all attributes of the class
1092
1538
# Ignore non-D-Bus attributes, and D-Bus attributes
1093
1539
# with the wrong interface name
1094
1540
if (not hasattr(attribute, "_dbus_interface")
1095
or not attribute._dbus_interface
1096
.startswith(orig_interface_name)):
1541
or not attribute._dbus_interface.startswith(
1542
orig_interface_name)):
1097
1543
continue
1098
1544
# Create an alternate D-Bus interface name based on
1099
1545
# the current name
1100
alt_interface = (attribute._dbus_interface
1101
.replace(orig_interface_name,
1102
alt_interface_name))
1546
alt_interface = attribute._dbus_interface.replace(
1547
orig_interface_name, alt_interface_name)
1103
1548
interface_names.add(alt_interface)
1104
1549
# Is this a D-Bus signal?
1105
1550
if getattr(attribute, "_dbus_is_signal", False):
1106
1551
# Extract the original non-method undecorated
1107
1552
# function by black magic
1108
nonmethod_func = (dict(
1553
if sys.version_info.major == 2:
1554
nonmethod_func = (dict(
1109
1555
zip(attribute.func_code.co_freevars,
1110
attribute.__closure__))["func"]
1111
.cell_contents)
1556
attribute.__closure__))
1557
["func"].cell_contents)
1558
else:
1559
nonmethod_func = (dict(
1560
zip(attribute.__code__.co_freevars,
1561
attribute.__closure__))
1562
["func"].cell_contents)
1112
1563
# Create a new, but exactly alike, function
1113
1564
# object, and decorate it to be a new D-Bus signal
1114
1565
# with the alternate D-Bus interface name
1115
new_function = (dbus.service.signal
1116
(alt_interface,
1117
attribute._dbus_signature)
1118
(types.FunctionType(
1119
nonmethod_func.func_code,
1120
nonmethod_func.func_globals,
1121
nonmethod_func.func_name,
1122
nonmethod_func.func_defaults,
1123
nonmethod_func.func_closure)))
1566
new_function = copy_function(nonmethod_func)
1567
new_function = (dbus.service.signal(
1568
alt_interface,
1569
attribute._dbus_signature)(new_function))
1124
1570
# Copy annotations, if any
1125
1571
try:
1126
new_function._dbus_annotations = (
1127
dict(attribute._dbus_annotations))
1572
new_function._dbus_annotations = dict(
1573
attribute._dbus_annotations)
1128
1574
except AttributeError:
1129
1575
pass
1130
1576
# Define a creator of a function to call both the
1135
1581
"""This function is a scope container to pass
1136
1582
func1 and func2 to the "call_both" function
1137
1583
outside of its arguments"""
1584
1585
@functools.wraps(func2)
1138
1586
def call_both(*args, **kwargs):
1139
1587
"""This function will emit two D-Bus
1140
1588
signals by calling func1 and func2"""
1141
1589
func1(*args, **kwargs)
1142
1590
func2(*args, **kwargs)
1591
# Make wrapper function look like a D-Bus signal
1592
for name, attr in inspect.getmembers(func2):
1593
if name.startswith("_dbus_"):
1594
setattr(call_both, name, attr)
1595
1143
1596
return call_both
1144
1597
# Create the "call_both" function and add it to
1145
1598
# the class
1150
1603
# object. Decorate it to be a new D-Bus method
1151
1604
# with the alternate D-Bus interface name. Add it
1152
1605
# to the class.
1153
attr[attrname] = (dbus.service.method
1154
(alt_interface,
1155
attribute._dbus_in_signature,
1156
attribute._dbus_out_signature)
1157
(types.FunctionType
1158
(attribute.func_code,
1159
attribute.func_globals,
1160
attribute.func_name,
1161
attribute.func_defaults,
1162
attribute.func_closure)))
1606
attr[attrname] = (
1607
dbus.service.method(
1608
alt_interface,
1609
attribute._dbus_in_signature,
1610
attribute._dbus_out_signature)
1611
(copy_function(attribute)))
1163
1612
# Copy annotations, if any
1164
1613
try:
1165
attr[attrname]._dbus_annotations = (
1166
dict(attribute._dbus_annotations))
1614
attr[attrname]._dbus_annotations = dict(
1615
attribute._dbus_annotations)
1167
1616
except AttributeError:
1168
1617
pass
1169
1618
# Is this a D-Bus property?
1172
1621
# object, and decorate it to be a new D-Bus
1173
1622
# property with the alternate D-Bus interface
1174
1623
# name. Add it to the class.
1175
attr[attrname] = (dbus_service_property
1176
(alt_interface,
1177
attribute._dbus_signature,
1178
attribute._dbus_access,
1179
attribute
1180
._dbus_get_args_options
1181
["byte_arrays"])
1182
(types.FunctionType
1183
(attribute.func_code,
1184
attribute.func_globals,
1185
attribute.func_name,
1186
attribute.func_defaults,
1187
attribute.func_closure)))
1624
attr[attrname] = (dbus_service_property(
1625
alt_interface, attribute._dbus_signature,
1626
attribute._dbus_access,
1627
attribute._dbus_get_args_options
1628
["byte_arrays"])
1629
(copy_function(attribute)))
1188
1630
# Copy annotations, if any
1189
1631
try:
1190
attr[attrname]._dbus_annotations = (
1191
dict(attribute._dbus_annotations))
1632
attr[attrname]._dbus_annotations = dict(
1633
attribute._dbus_annotations)
1192
1634
except AttributeError:
1193
1635
pass
1194
1636
# Is this a D-Bus interface?
1197
1639
# object. Decorate it to be a new D-Bus interface
1198
1640
# with the alternate D-Bus interface name. Add it
1199
1641
# to the class.
1200
attr[attrname] = (dbus_interface_annotations
1201
(alt_interface)
1202
(types.FunctionType
1203
(attribute.func_code,
1204
attribute.func_globals,
1205
attribute.func_name,
1206
attribute.func_defaults,
1207
attribute.func_closure)))
1642
attr[attrname] = (
1643
dbus_interface_annotations(alt_interface)
1644
(copy_function(attribute)))
1208
1645
if deprecate:
1209
1646
# Deprecate all alternate interfaces
1210
iname="_AlternateDBusNames_interface_annotation{0}"
1647
iname="_AlternateDBusNames_interface_annotation{}"
1211
1648
for interface_name in interface_names:
1649
1212
1650
@dbus_interface_annotations(interface_name)
1213
1651
def func(self):
1214
1652
return { "org.freedesktop.DBus.Deprecated":
1215
"true" }
1653
"true" }
1216
1654
# Find an unused name
1217
1655
for aname in (iname.format(i)
1218
1656
for i in itertools.count()):
1222
1660
if interface_names:
1223
1661
# Replace the class with a new subclass of it with
1224
1662
# methods, signals, etc. as created above.
1225
cls = type(b"{0}Alternate".format(cls.__name__),
1226
(cls,), attr)
1663
if sys.version_info.major == 2:
1664
cls = type(b"{}Alternate".format(cls.__name__),
1665
(cls, ), attr)
1666
else:
1667
cls = type("{}Alternate".format(cls.__name__),
1668
(cls, ), attr)
1227
1669
return cls
1670
1228
1671
return wrapper
1229
1672
1230
1673
1231
1674
@alternate_dbus_interfaces({"se.recompile.Mandos":
1232
"se.bsnet.fukt.Mandos"})
1675
"se.bsnet.fukt.Mandos"})
1233
1676
class ClientDBus(Client, DBusObjectWithProperties):
1234
1677
"""A Client class using D-Bus
1235
1678
1239
1682
"""
1240
1683
1241
1684
runtime_expansions = (Client.runtime_expansions
1242
+ ("dbus_object_path",))
1685
+ ("dbus_object_path", ))
1686
1687
_interface = "se.recompile.Mandos.Client"
1243
1688
1244
1689
# dbus.service.Object doesn't use super(), so we can't either.
1245
1690
1248
1693
Client.__init__(self, *args, **kwargs)
1249
1694
# Only now, when this client is initialized, can it show up on
1250
1695
# the D-Bus
1251
client_object_name = unicode(self.name).translate(
1696
client_object_name = str(self.name).translate(
1252
1697
{ord("."): ord("_"),
1253
1698
ord("-"): ord("_")})
1254
self.dbus_object_path = (dbus.ObjectPath
1255
("/clients/" + client_object_name))
1699
self.dbus_object_path = dbus.ObjectPath(
1700
"/clients/" + client_object_name)
1256
1701
DBusObjectWithProperties.__init__(self, self.bus,
1257
1702
self.dbus_object_path)
1258
1703
1259
def notifychangeproperty(transform_func,
1260
dbus_name, type_func=lambda x: x,
1261
variant_level=1):
1704
def notifychangeproperty(transform_func, dbus_name,
1705
type_func=lambda x: x,
1706
variant_level=1,
1707
invalidate_only=False,
1708
_interface=_interface):
1262
1709
""" Modify a variable so that it's a property which announces
1263
1710
its changes to DBus.
1264
1711
1269
1716
to the D-Bus. Default: no transform
1270
1717
variant_level: D-Bus variant level. Default: 1
1271
1718
"""
1272
attrname = "_{0}".format(dbus_name)
1719
attrname = "_{}".format(dbus_name)
1720
1273
1721
def setter(self, value):
1274
1722
if hasattr(self, "dbus_object_path"):
1275
1723
if (not hasattr(self, attrname) or
1276
1724
type_func(getattr(self, attrname, None))
1277
1725
!= type_func(value)):
1278
dbus_value = transform_func(type_func(value),
1279
variant_level
1280
=variant_level)
1281
self.PropertyChanged(dbus.String(dbus_name),
1282
dbus_value)
1726
if invalidate_only:
1727
self.PropertiesChanged(
1728
_interface, dbus.Dictionary(),
1729
dbus.Array((dbus_name, )))
1730
else:
1731
dbus_value = transform_func(
1732
type_func(value),
1733
variant_level = variant_level)
1734
self.PropertyChanged(dbus.String(dbus_name),
1735
dbus_value)
1736
self.PropertiesChanged(
1737
_interface,
1738
dbus.Dictionary({ dbus.String(dbus_name):
1739
dbus_value }),
1740
dbus.Array())
1283
1741
setattr(self, attrname, value)
1284
1742
1285
1743
return property(lambda self: getattr(self, attrname), setter)
1291
1749
enabled = notifychangeproperty(dbus.Boolean, "Enabled")
1292
1750
last_enabled = notifychangeproperty(datetime_to_dbus,
1293
1751
"LastEnabled")
1294
checker = notifychangeproperty(dbus.Boolean, "CheckerRunning",
1295
type_func = lambda checker:
1296
checker is not None)
1752
checker = notifychangeproperty(
1753
dbus.Boolean, "CheckerRunning",
1754
type_func = lambda checker: checker is not None)
1297
1755
last_checked_ok = notifychangeproperty(datetime_to_dbus,
1298
1756
"LastCheckedOK")
1299
1757
last_checker_status = notifychangeproperty(dbus.Int16,
1302
1760
datetime_to_dbus, "LastApprovalRequest")
1303
1761
approved_by_default = notifychangeproperty(dbus.Boolean,
1304
1762
"ApprovedByDefault")
1305
approval_delay = notifychangeproperty(dbus.UInt64,
1306
"ApprovalDelay",
1307
type_func =
1308
timedelta_to_milliseconds)
1763
approval_delay = notifychangeproperty(
1764
dbus.UInt64, "ApprovalDelay",
1765
type_func = lambda td: td.total_seconds() * 1000)
1309
1766
approval_duration = notifychangeproperty(
1310
1767
dbus.UInt64, "ApprovalDuration",
1311
type_func = timedelta_to_milliseconds)
1768
type_func = lambda td: td.total_seconds() * 1000)
1312
1769
host = notifychangeproperty(dbus.String, "Host")
1313
timeout = notifychangeproperty(dbus.UInt64, "Timeout",
1314
type_func =
1315
timedelta_to_milliseconds)
1770
timeout = notifychangeproperty(
1771
dbus.UInt64, "Timeout",
1772
type_func = lambda td: td.total_seconds() * 1000)
1316
1773
extended_timeout = notifychangeproperty(
1317
1774
dbus.UInt64, "ExtendedTimeout",
1318
type_func = timedelta_to_milliseconds)
1319
interval = notifychangeproperty(dbus.UInt64,
1320
"Interval",
1321
type_func =
1322
timedelta_to_milliseconds)
1775
type_func = lambda td: td.total_seconds() * 1000)
1776
interval = notifychangeproperty(
1777
dbus.UInt64, "Interval",
1778
type_func = lambda td: td.total_seconds() * 1000)
1323
1779
checker_command = notifychangeproperty(dbus.String, "Checker")
1780
secret = notifychangeproperty(dbus.ByteArray, "Secret",
1781
invalidate_only=True)
1324
1782
1325
1783
del notifychangeproperty
1326
1784
1333
1791
DBusObjectWithProperties.__del__(self, *args, **kwargs)
1334
1792
Client.__del__(self, *args, **kwargs)
1335
1793
1336
def checker_callback(self, pid, condition, command,
1337
*args, **kwargs):
1338
self.checker_callback_tag = None
1339
self.checker = None
1340
if os.WIFEXITED(condition):
1341
exitstatus = os.WEXITSTATUS(condition)
1794
def checker_callback(self, source, condition,
1795
connection, command, *args, **kwargs):
1796
ret = Client.checker_callback(self, source, condition,
1797
connection, command, *args,
1798
**kwargs)
1799
exitstatus = self.last_checker_status
1800
if exitstatus >= 0:
1342
1801
# Emit D-Bus signal
1343
1802
self.CheckerCompleted(dbus.Int16(exitstatus),
1344
dbus.Int64(condition),
1803
# This is specific to GNU libC
1804
dbus.Int64(exitstatus << 8),
1345
1805
dbus.String(command))
1346
1806
else:
1347
1807
# Emit D-Bus signal
1348
1808
self.CheckerCompleted(dbus.Int16(-1),
1349
dbus.Int64(condition),
1809
dbus.Int64(
1810
# This is specific to GNU libC
1811
(exitstatus << 8)
1812
| self.last_checker_signal),
1350
1813
dbus.String(command))
1351
1352
return Client.checker_callback(self, pid, condition, command,
1353
*args, **kwargs)
1814
return ret
1354
1815
1355
1816
def start_checker(self, *args, **kwargs):
1356
1817
old_checker_pid = getattr(self.checker, "pid", None)
1368
1829
1369
1830
def approve(self, value=True):
1370
1831
self.approved = value
1371
gobject.timeout_add(timedelta_to_milliseconds
1372
(self.approval_duration),
1373
self._reset_approved)
1832
GLib.timeout_add(int(self.approval_duration.total_seconds()
1833
* 1000), self._reset_approved)
1374
1834
self.send_changedstate()
1375
1835
1376
1836
## D-Bus methods, signals & properties
1377
_interface = "se.recompile.Mandos.Client"
1378
1837
1379
1838
## Interfaces
1380
1839
1381
@dbus_interface_annotations(_interface)
1382
def _foo(self):
1383
return { "org.freedesktop.DBus.Property.EmitsChangedSignal":
1384
"false"}
1385
1386
1840
## Signals
1387
1841
1388
1842
# CheckerCompleted - signal
1398
1852
pass
1399
1853
1400
1854
# PropertyChanged - signal
1855
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1401
1856
@dbus.service.signal(_interface, signature="sv")
1402
1857
def PropertyChanged(self, property, value):
1403
1858
"D-Bus signal"
1437
1892
self.checked_ok()
1438
1893
1439
1894
# Enable - method
1895
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1440
1896
@dbus.service.method(_interface)
1441
1897
def Enable(self):
1442
1898
"D-Bus method"
1443
1899
self.enable()
1444
1900
1445
1901
# StartChecker - method
1902
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1446
1903
@dbus.service.method(_interface)
1447
1904
def StartChecker(self):
1448
1905
"D-Bus method"
1449
1906
self.start_checker()
1450
1907
1451
1908
# Disable - method
1909
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1452
1910
@dbus.service.method(_interface)
1453
1911
def Disable(self):
1454
1912
"D-Bus method"
1455
1913
self.disable()
1456
1914
1457
1915
# StopChecker - method
1916
@dbus_annotations({"org.freedesktop.DBus.Deprecated": "true"})
1458
1917
@dbus.service.method(_interface)
1459
1918
def StopChecker(self):
1460
1919
self.stop_checker()
1467
1926
return dbus.Boolean(bool(self.approvals_pending))
1468
1927
1469
1928
# ApprovedByDefault - property
1470
@dbus_service_property(_interface, signature="b",
1929
@dbus_service_property(_interface,
1930
signature="b",
1471
1931
access="readwrite")
1472
1932
def ApprovedByDefault_dbus_property(self, value=None):
1473
1933
if value is None: # get
1475
1935
self.approved_by_default = bool(value)
1476
1936
1477
1937
# ApprovalDelay - property
1478
@dbus_service_property(_interface, signature="t",
1938
@dbus_service_property(_interface,
1939
signature="t",
1479
1940
access="readwrite")
1480
1941
def ApprovalDelay_dbus_property(self, value=None):
1481
1942
if value is None: # get
1482
return dbus.UInt64(self.approval_delay_milliseconds())
1943
return dbus.UInt64(self.approval_delay.total_seconds()
1944
* 1000)
1483
1945
self.approval_delay = datetime.timedelta(0, 0, 0, value)
1484
1946
1485
1947
# ApprovalDuration - property
1486
@dbus_service_property(_interface, signature="t",
1948
@dbus_service_property(_interface,
1949
signature="t",
1487
1950
access="readwrite")
1488
1951
def ApprovalDuration_dbus_property(self, value=None):
1489
1952
if value is None: # get
1490
return dbus.UInt64(timedelta_to_milliseconds(
1491
self.approval_duration))
1953
return dbus.UInt64(self.approval_duration.total_seconds()
1954
* 1000)
1492
1955
self.approval_duration = datetime.timedelta(0, 0, 0, value)
1493
1956
1494
1957
# Name - property
1958
@dbus_annotations(
1959
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1495
1960
@dbus_service_property(_interface, signature="s", access="read")
1496
1961
def Name_dbus_property(self):
1497
1962
return dbus.String(self.name)
1498
1963
1499
1964
# Fingerprint - property
1965
@dbus_annotations(
1966
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1500
1967
@dbus_service_property(_interface, signature="s", access="read")
1501
1968
def Fingerprint_dbus_property(self):
1502
1969
return dbus.String(self.fingerprint)
1503
1970
1504
1971
# Host - property
1505
@dbus_service_property(_interface, signature="s",
1972
@dbus_service_property(_interface,
1973
signature="s",
1506
1974
access="readwrite")
1507
1975
def Host_dbus_property(self, value=None):
1508
1976
if value is None: # get
1509
1977
return dbus.String(self.host)
1510
self.host = unicode(value)
1978
self.host = str(value)
1511
1979
1512
1980
# Created - property
1981
@dbus_annotations(
1982
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const"})
1513
1983
@dbus_service_property(_interface, signature="s", access="read")
1514
1984
def Created_dbus_property(self):
1515
1985
return datetime_to_dbus(self.created)
1520
1990
return datetime_to_dbus(self.last_enabled)
1521
1991
1522
1992
# Enabled - property
1523
@dbus_service_property(_interface, signature="b",
1993
@dbus_service_property(_interface,
1994
signature="b",
1524
1995
access="readwrite")
1525
1996
def Enabled_dbus_property(self, value=None):
1526
1997
if value is None: # get
1531
2002
self.disable()
1532
2003
1533
2004
# LastCheckedOK - property
1534
@dbus_service_property(_interface, signature="s",
2005
@dbus_service_property(_interface,
2006
signature="s",
1535
2007
access="readwrite")
1536
2008
def LastCheckedOK_dbus_property(self, value=None):
1537
2009
if value is not None:
1540
2012
return datetime_to_dbus(self.last_checked_ok)
1541
2013
1542
2014
# LastCheckerStatus - property
1543
@dbus_service_property(_interface, signature="n",
1544
access="read")
2015
@dbus_service_property(_interface, signature="n", access="read")
1545
2016
def LastCheckerStatus_dbus_property(self):
1546
2017
return dbus.Int16(self.last_checker_status)
1547
2018
1556
2027
return datetime_to_dbus(self.last_approval_request)
1557
2028
1558
2029
# Timeout - property
1559
@dbus_service_property(_interface, signature="t",
2030
@dbus_service_property(_interface,
2031
signature="t",
1560
2032
access="readwrite")
1561
2033
def Timeout_dbus_property(self, value=None):
1562
2034
if value is None: # get
1563
return dbus.UInt64(self.timeout_milliseconds())
2035
return dbus.UInt64(self.timeout.total_seconds() * 1000)
1564
2036
old_timeout = self.timeout
1565
2037
self.timeout = datetime.timedelta(0, 0, 0, value)
1566
2038
# Reschedule disabling
1574
2046
if (getattr(self, "disable_initiator_tag", None)
1575
2047
is None):
1576
2048
return
1577
gobject.source_remove(self.disable_initiator_tag)
1578
self.disable_initiator_tag = (
1579
gobject.timeout_add(
1580
timedelta_to_milliseconds(self.expires - now),
1581
self.disable))
2049
GLib.source_remove(self.disable_initiator_tag)
2050
self.disable_initiator_tag = GLib.timeout_add(
2051
int((self.expires - now).total_seconds() * 1000),
2052
self.disable)
1582
2053
1583
2054
# ExtendedTimeout - property
1584
@dbus_service_property(_interface, signature="t",
2055
@dbus_service_property(_interface,
2056
signature="t",
1585
2057
access="readwrite")
1586
2058
def ExtendedTimeout_dbus_property(self, value=None):
1587
2059
if value is None: # get
1588
return dbus.UInt64(self.extended_timeout_milliseconds())
2060
return dbus.UInt64(self.extended_timeout.total_seconds()
2061
* 1000)
1589
2062
self.extended_timeout = datetime.timedelta(0, 0, 0, value)
1590
2063
1591
2064
# Interval - property
1592
@dbus_service_property(_interface, signature="t",
2065
@dbus_service_property(_interface,
2066
signature="t",
1593
2067
access="readwrite")
1594
2068
def Interval_dbus_property(self, value=None):
1595
2069
if value is None: # get
1596
return dbus.UInt64(self.interval_milliseconds())
2070
return dbus.UInt64(self.interval.total_seconds() * 1000)
1597
2071
self.interval = datetime.timedelta(0, 0, 0, value)
1598
2072
if getattr(self, "checker_initiator_tag", None) is None:
1599
2073
return
1600
2074
if self.enabled:
1601
2075
# Reschedule checker run
1602
gobject.source_remove(self.checker_initiator_tag)
1603
self.checker_initiator_tag = (gobject.timeout_add
1604
(value, self.start_checker))
1605
self.start_checker() # Start one now, too
2076
GLib.source_remove(self.checker_initiator_tag)
2077
self.checker_initiator_tag = GLib.timeout_add(
2078
value, self.start_checker)
2079
self.start_checker() # Start one now, too
1606
2080
1607
2081
# Checker - property
1608
@dbus_service_property(_interface, signature="s",
2082
@dbus_service_property(_interface,
2083
signature="s",
1609
2084
access="readwrite")
1610
2085
def Checker_dbus_property(self, value=None):
1611
2086
if value is None: # get
1612
2087
return dbus.String(self.checker_command)
1613
self.checker_command = unicode(value)
2088
self.checker_command = str(value)
1614
2089
1615
2090
# CheckerRunning - property
1616
@dbus_service_property(_interface, signature="b",
2091
@dbus_service_property(_interface,
2092
signature="b",
1617
2093
access="readwrite")
1618
2094
def CheckerRunning_dbus_property(self, value=None):
1619
2095
if value is None: # get
1624
2100
self.stop_checker()
1625
2101
1626
2102
# ObjectPath - property
2103
@dbus_annotations(
2104
{"org.freedesktop.DBus.Property.EmitsChangedSignal": "const",
2105
"org.freedesktop.DBus.Deprecated": "true"})
1627
2106
@dbus_service_property(_interface, signature="o", access="read")
1628
2107
def ObjectPath_dbus_property(self):
1629
2108
return self.dbus_object_path # is already a dbus.ObjectPath
1630
2109
1631
2110
# Secret = property
1632
@dbus_service_property(_interface, signature="ay",
1633
access="write", byte_arrays=True)
2111
@dbus_annotations(
2112
{"org.freedesktop.DBus.Property.EmitsChangedSignal":
2113
"invalidates"})
2114
@dbus_service_property(_interface,
2115
signature="ay",
2116
access="write",
2117
byte_arrays=True)
1634
2118
def Secret_dbus_property(self, value):
1635
self.secret = str(value)
2119
self.secret = bytes(value)
1636
2120
1637
2121
del _interface
1638
2122
1642
2126
self._pipe = child_pipe
1643
2127
self._pipe.send(('init', fpr, address))
1644
2128
if not self._pipe.recv():
1645
raise KeyError()
2129
raise KeyError(fpr)
1646
2130
1647
2131
def __getattribute__(self, name):
1648
2132
if name == '_pipe':
1652
2136
if data[0] == 'data':
1653
2137
return data[1]
1654
2138
if data[0] == 'function':
2139
1655
2140
def func(*args, **kwargs):
1656
2141
self._pipe.send(('funcall', name, args, kwargs))
1657
2142
return self._pipe.recv()[1]
2143
1658
2144
return func
1659
2145
1660
2146
def __setattr__(self, name, value):
1672
2158
def handle(self):
1673
2159
with contextlib.closing(self.server.child_pipe) as child_pipe:
1674
2160
logger.info("TCP connection from: %s",
1675
unicode(self.client_address))
2161
str(self.client_address))
1676
2162
logger.debug("Pipe FD: %d",
1677
2163
self.server.child_pipe.fileno())
1678
2164
1679
session = (gnutls.connection
1680
.ClientSession(self.request,
1681
gnutls.connection
1682
.X509Credentials()))
1683
1684
# Note: gnutls.connection.X509Credentials is really a
1685
# generic GnuTLS certificate credentials object so long as
1686
# no X.509 keys are added to it. Therefore, we can use it
1687
# here despite using OpenPGP certificates.
2165
session = gnutls.ClientSession(self.request)
1688
2166
1689
2167
#priority = ':'.join(("NONE", "+VERS-TLS1.1",
1690
2168
# "+AES-256-CBC", "+SHA1",
1694
2172
priority = self.server.gnutls_priority
1695
2173
if priority is None:
1696
2174
priority = "NORMAL"
1697
(gnutls.library.functions
1698
.gnutls_priority_set_direct(session._c_object,
1699
priority, None))
2175
gnutls.priority_set_direct(session._c_object, priority,
2176
None)
1700
2177
1701
2178
# Start communication using the Mandos protocol
1702
2179
# Get protocol number
1712
2189
# Start GnuTLS connection
1713
2190
try:
1714
2191
session.handshake()
1715
except gnutls.errors.GNUTLSError as error:
2192
except gnutls.Error as error:
1716
2193
logger.warning("Handshake failed: %s", error)
1717
2194
# Do not run session.bye() here: the session is not
1718
2195
# established. Just abandon the request.
1722
2199
approval_required = False
1723
2200
try:
1724
2201
try:
1725
fpr = self.fingerprint(self.peer_certificate
1726
(session))
1727
except (TypeError,
1728
gnutls.errors.GNUTLSError) as error:
2202
fpr = self.fingerprint(
2203
self.peer_certificate(session))
2204
except (TypeError, gnutls.Error) as error:
1729
2205
logger.warning("Bad certificate: %s", error)
1730
2206
return
1731
2207
logger.debug("Fingerprint: %s", fpr)
1744
2220
while True:
1745
2221
if not client.enabled:
1746
2222
logger.info("Client %s is disabled",
1747
client.name)
2223
client.name)
1748
2224
if self.server.use_dbus:
1749
2225
# Emit D-Bus signal
1750
2226
client.Rejected("Disabled")
1759
2235
if self.server.use_dbus:
1760
2236
# Emit D-Bus signal
1761
2237
client.NeedApproval(
1762
client.approval_delay_milliseconds(),
1763
client.approved_by_default)
2238
client.approval_delay.total_seconds()
2239
* 1000, client.approved_by_default)
1764
2240
else:
1765
2241
logger.warning("Client %s was not approved",
1766
2242
client.name)
1772
2248
#wait until timeout or approved
1773
2249
time = datetime.datetime.now()
1774
2250
client.changedstate.acquire()
1775
client.changedstate.wait(
1776
float(timedelta_to_milliseconds(delay)
1777
/ 1000))
2251
client.changedstate.wait(delay.total_seconds())
1778
2252
client.changedstate.release()
1779
2253
time2 = datetime.datetime.now()
1780
2254
if (time2 - time) >= delay:
1791
2265
else:
1792
2266
delay -= time2 - time
1793
2267
1794
sent_size = 0
1795
while sent_size < len(client.secret):
1796
try:
1797
sent = session.send(client.secret[sent_size:])
1798
except gnutls.errors.GNUTLSError as error:
1799
logger.warning("gnutls send failed",
1800
exc_info=error)
1801
return
1802
logger.debug("Sent: %d, remaining: %d",
1803
sent, len(client.secret)
1804
- (sent_size + sent))
1805
sent_size += sent
2268
try:
2269
session.send(client.secret)
2270
except gnutls.Error as error:
2271
logger.warning("gnutls send failed",
2272
exc_info = error)
2273
return
1806
2274
1807
2275
logger.info("Sending secret to %s", client.name)
1808
2276
# bump the timeout using extended_timeout
1816
2284
client.approvals_pending -= 1
1817
2285
try:
1818
2286
session.bye()
1819
except gnutls.errors.GNUTLSError as error:
2287
except gnutls.Error as error:
1820
2288
logger.warning("GnuTLS bye failed",
1821
2289
exc_info=error)
1822
2290
1824
2292
def peer_certificate(session):
1825
2293
"Return the peer's OpenPGP certificate as a bytestring"
1826
2294
# If not an OpenPGP certificate...
1827
if (gnutls.library.functions
1828
.gnutls_certificate_type_get(session._c_object)
1829
!= gnutls.library.constants.GNUTLS_CRT_OPENPGP):
1830
# ...do the normal thing
1831
return session.peer_certificate
2295
if (gnutls.certificate_type_get(session._c_object)
2296
!= gnutls.CRT_OPENPGP):
2297
# ...return invalid data
2298
return b""
1832
2299
list_size = ctypes.c_uint(1)
1833
cert_list = (gnutls.library.functions
1834
.gnutls_certificate_get_peers
2300
cert_list = (gnutls.certificate_get_peers
1835
2301
(session._c_object, ctypes.byref(list_size)))
1836
2302
if not bool(cert_list) and list_size.value != 0:
1837
raise gnutls.errors.GNUTLSError("error getting peer"
1838
" certificate")
2303
raise gnutls.Error("error getting peer certificate")
1839
2304
if list_size.value == 0:
1840
2305
return None
1841
2306
cert = cert_list[0]
1845
2310
def fingerprint(openpgp):
1846
2311
"Convert an OpenPGP bytestring to a hexdigit fingerprint"
1847
2312
# New GnuTLS "datum" with the OpenPGP public key
1848
datum = (gnutls.library.types
1849
.gnutls_datum_t(ctypes.cast(ctypes.c_char_p(openpgp),
1850
ctypes.POINTER
1851
(ctypes.c_ubyte)),
1852
ctypes.c_uint(len(openpgp))))
2313
datum = gnutls.datum_t(
2314
ctypes.cast(ctypes.c_char_p(openpgp),
2315
ctypes.POINTER(ctypes.c_ubyte)),
2316
ctypes.c_uint(len(openpgp)))
1853
2317
# New empty GnuTLS certificate
1854
crt = gnutls.library.types.gnutls_openpgp_crt_t()
1855
(gnutls.library.functions
1856
.gnutls_openpgp_crt_init(ctypes.byref(crt)))
2318
crt = gnutls.openpgp_crt_t()
2319
gnutls.openpgp_crt_init(ctypes.byref(crt))
1857
2320
# Import the OpenPGP public key into the certificate
1858
(gnutls.library.functions
1859
.gnutls_openpgp_crt_import(crt, ctypes.byref(datum),
1860
gnutls.library.constants
1861
.GNUTLS_OPENPGP_FMT_RAW))
2321
gnutls.openpgp_crt_import(crt, ctypes.byref(datum),
2322
gnutls.OPENPGP_FMT_RAW)
1862
2323
# Verify the self signature in the key
1863
2324
crtverify = ctypes.c_uint()
1864
(gnutls.library.functions
1865
.gnutls_openpgp_crt_verify_self(crt, 0,
1866
ctypes.byref(crtverify)))
2325
gnutls.openpgp_crt_verify_self(crt, 0,
2326
ctypes.byref(crtverify))
1867
2327
if crtverify.value != 0:
1868
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
1869
raise (gnutls.errors.CertificateSecurityError
1870
("Verify failed"))
2328
gnutls.openpgp_crt_deinit(crt)
2329
raise gnutls.CertificateSecurityError("Verify failed")
1871
2330
# New buffer for the fingerprint
1872
2331
buf = ctypes.create_string_buffer(20)
1873
2332
buf_len = ctypes.c_size_t()
1874
2333
# Get the fingerprint from the certificate into the buffer
1875
(gnutls.library.functions
1876
.gnutls_openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
1877
ctypes.byref(buf_len)))
2334
gnutls.openpgp_crt_get_fingerprint(crt, ctypes.byref(buf),
2335
ctypes.byref(buf_len))
1878
2336
# Deinit the certificate
1879
gnutls.library.functions.gnutls_openpgp_crt_deinit(crt)
2337
gnutls.openpgp_crt_deinit(crt)
1880
2338
# Convert the buffer to a Python bytestring
1881
2339
fpr = ctypes.string_at(buf, buf_len.value)
1882
2340
# Convert the bytestring to hexadecimal notation
1886
2344
1887
2345
class MultiprocessingMixIn(object):
1888
2346
"""Like socketserver.ThreadingMixIn, but with multiprocessing"""
2347
1889
2348
def sub_process_main(self, request, address):
1890
2349
try:
1891
2350
self.finish_request(request, address)
1903
2362
1904
2363
class MultiprocessingMixInWithPipe(MultiprocessingMixIn, object):
1905
2364
""" adds a pipe to the MixIn """
2365
1906
2366
def process_request(self, request, client_address):
1907
2367
"""Overrides and wraps the original process_request().
1908
2368
1929
2389
interface: None or a network interface name (string)
1930
2390
use_ipv6: Boolean; to use IPv6 or not
1931
2391
"""
2392
1932
2393
def __init__(self, server_address, RequestHandlerClass,
1933
interface=None, use_ipv6=True, socketfd=None):
2394
interface=None,
2395
use_ipv6=True,
2396
socketfd=None):
1934
2397
"""If socketfd is set, use that file descriptor instead of
1935
2398
creating a new one with socket.socket().
1936
2399
"""
1977
2440
self.interface)
1978
2441
else:
1979
2442
try:
1980
self.socket.setsockopt(socket.SOL_SOCKET,
1981
SO_BINDTODEVICE,
1982
str(self.interface + '\0'))
2443
self.socket.setsockopt(
2444
socket.SOL_SOCKET, SO_BINDTODEVICE,
2445
(self.interface + "\0").encode("utf-8"))
1983
2446
except socket.error as error:
1984
2447
if error.errno == errno.EPERM:
1985
2448
logger.error("No permission to bind to"
2003
2466
self.server_address = (any_address,
2004
2467
self.server_address[1])
2005
2468
elif not self.server_address[1]:
2006
self.server_address = (self.server_address[0],
2007
0)
2469
self.server_address = (self.server_address[0], 0)
2008
2470
# if self.interface:
2009
2471
# self.server_address = (self.server_address[0],
2010
2472
# 0, # port
2022
2484
gnutls_priority GnuTLS priority string
2023
2485
use_dbus: Boolean; to emit D-Bus signals or not
2024
2486
2025
Assumes a gobject.MainLoop event loop.
2487
Assumes a GLib.MainLoop event loop.
2026
2488
"""
2489
2027
2490
def __init__(self, server_address, RequestHandlerClass,
2028
interface=None, use_ipv6=True, clients=None,
2029
gnutls_priority=None, use_dbus=True, socketfd=None):
2491
interface=None,
2492
use_ipv6=True,
2493
clients=None,
2494
gnutls_priority=None,
2495
use_dbus=True,
2496
socketfd=None):
2030
2497
self.enabled = False
2031
2498
self.clients = clients
2032
2499
if self.clients is None:
2038
2505
interface = interface,
2039
2506
use_ipv6 = use_ipv6,
2040
2507
socketfd = socketfd)
2508
2041
2509
def server_activate(self):
2042
2510
if self.enabled:
2043
2511
return socketserver.TCPServer.server_activate(self)
2047
2515
2048
2516
def add_pipe(self, parent_pipe, proc):
2049
2517
# Call "handle_ipc" for both data and EOF events
2050
gobject.io_add_watch(parent_pipe.fileno(),
2051
gobject.IO_IN | gobject.IO_HUP,
2052
functools.partial(self.handle_ipc,
2053
parent_pipe =
2054
parent_pipe,
2055
proc = proc))
2518
GLib.io_add_watch(
2519
parent_pipe.fileno(),
2520
GLib.IO_IN | GLib.IO_HUP,
2521
functools.partial(self.handle_ipc,
2522
parent_pipe = parent_pipe,
2523
proc = proc))
2056
2524
2057
def handle_ipc(self, source, condition, parent_pipe=None,
2058
proc = None, client_object=None):
2525
def handle_ipc(self, source, condition,
2526
parent_pipe=None,
2527
proc = None,
2528
client_object=None):
2059
2529
# error, or the other end of multiprocessing.Pipe has closed
2060
if condition & (gobject.IO_ERR | gobject.IO_HUP):
2530
if condition & (GLib.IO_ERR | GLib.IO_HUP):
2061
2531
# Wait for other process to exit
2062
2532
proc.join()
2063
2533
return False
2070
2540
fpr = request[1]
2071
2541
address = request[2]
2072
2542
2073
for c in self.clients.itervalues():
2543
for c in self.clients.values():
2074
2544
if c.fingerprint == fpr:
2075
2545
client = c
2076
2546
break
2084
2554
parent_pipe.send(False)
2085
2555
return False
2086
2556
2087
gobject.io_add_watch(parent_pipe.fileno(),
2088
gobject.IO_IN | gobject.IO_HUP,
2089
functools.partial(self.handle_ipc,
2090
parent_pipe =
2091
parent_pipe,
2092
proc = proc,
2093
client_object =
2094
client))
2557
GLib.io_add_watch(
2558
parent_pipe.fileno(),
2559
GLib.IO_IN | GLib.IO_HUP,
2560
functools.partial(self.handle_ipc,
2561
parent_pipe = parent_pipe,
2562
proc = proc,
2563
client_object = client))
2095
2564
parent_pipe.send(True)
2096
2565
# remove the old hook in favor of the new above hook on
2097
2566
# same fileno
2103
2572
2104
2573
parent_pipe.send(('data', getattr(client_object,
2105
2574
funcname)(*args,
2106
**kwargs)))
2575
**kwargs)))
2107
2576
2108
2577
if command == 'getattr':
2109
2578
attrname = request[1]
2110
if callable(client_object.__getattribute__(attrname)):
2111
parent_pipe.send(('function',))
2579
if isinstance(client_object.__getattribute__(attrname),
2580
collections.Callable):
2581
parent_pipe.send(('function', ))
2112
2582
else:
2113
parent_pipe.send(('data', client_object
2114
.__getattribute__(attrname)))
2583
parent_pipe.send((
2584
'data', client_object.__getattribute__(attrname)))
2115
2585
2116
2586
if command == 'setattr':
2117
2587
attrname = request[1]
2148
2618
# avoid excessive use of external libraries.
2149
2619
2150
2620
# New type for defining tokens, syntax, and semantics all-in-one
2151
Token = collections.namedtuple("Token",
2152
("regexp", # To match token; if
2153
# "value" is not None,
2154
# must have a "group"
2155
# containing digits
2156
"value", # datetime.timedelta or
2157
# None
2158
"followers")) # Tokens valid after
2159
# this token
2621
Token = collections.namedtuple("Token", (
2622
"regexp", # To match token; if "value" is not None, must have
2623
# a "group" containing digits
2624
"value", # datetime.timedelta or None
2625
"followers")) # Tokens valid after this token
2160
2626
# RFC 3339 "duration" tokens, syntax, and semantics; taken from
2161
2627
# the "duration" ABNF definition in RFC 3339, Appendix A.
2162
2628
token_end = Token(re.compile(r"$"), None, frozenset())
2163
2629
token_second = Token(re.compile(r"(\d+)S"),
2164
2630
datetime.timedelta(seconds=1),
2165
frozenset((token_end,)))
2631
frozenset((token_end, )))
2166
2632
token_minute = Token(re.compile(r"(\d+)M"),
2167
2633
datetime.timedelta(minutes=1),
2168
2634
frozenset((token_second, token_end)))
2184
2650
frozenset((token_month, token_end)))
2185
2651
token_week = Token(re.compile(r"(\d+)W"),
2186
2652
datetime.timedelta(weeks=1),
2187
frozenset((token_end,)))
2653
frozenset((token_end, )))
2188
2654
token_duration = Token(re.compile(r"P"), None,
2189
2655
frozenset((token_year, token_month,
2190
2656
token_day, token_time,
2191
token_week))),
2657
token_week)))
2192
2658
# Define starting values
2193
2659
value = datetime.timedelta() # Value so far
2194
2660
found_token = None
2195
followers = frozenset(token_duration,) # Following valid tokens
2661
followers = frozenset((token_duration, )) # Following valid tokens
2196
2662
s = duration # String left to parse
2197
2663
# Loop until end token is found
2198
2664
while found_token is not token_end:
2215
2681
break
2216
2682
else:
2217
2683
# No currently valid tokens were found
2218
raise ValueError("Invalid RFC 3339 duration")
2684
raise ValueError("Invalid RFC 3339 duration: {!r}"
2685
.format(duration))
2219
2686
# End token found
2220
2687
return value
2221
2688
2245
2712
timevalue = datetime.timedelta(0)
2246
2713
for s in interval.split():
2247
2714
try:
2248
suffix = unicode(s[-1])
2715
suffix = s[-1]
2249
2716
value = int(s[:-1])
2250
2717
if suffix == "d":
2251
2718
delta = datetime.timedelta(value)
2258
2725
elif suffix == "w":
2259
2726
delta = datetime.timedelta(0, 0, 0, 0, 0, 0, value)
2260
2727
else:
2261
raise ValueError("Unknown suffix {0!r}"
2262
.format(suffix))
2728
raise ValueError("Unknown suffix {!r}".format(suffix))
2263
2729
except IndexError as e:
2264
2730
raise ValueError(*(e.args))
2265
2731
timevalue += delta
2282
2748
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2283
2749
if not stat.S_ISCHR(os.fstat(null).st_mode):
2284
2750
raise OSError(errno.ENODEV,
2285
"{0} not a character device"
2751
"{} not a character device"
2286
2752
.format(os.devnull))
2287
2753
os.dup2(null, sys.stdin.fileno())
2288
2754
os.dup2(null, sys.stdout.fileno())
2298
2764
2299
2765
parser = argparse.ArgumentParser()
2300
2766
parser.add_argument("-v", "--version", action="version",
2301
version = "%(prog)s {0}".format(version),
2767
version = "%(prog)s {}".format(version),
2302
2768
help="show version number and exit")
2303
2769
parser.add_argument("-i", "--interface", metavar="IF",
2304
2770
help="Bind to interface IF")
2337
2803
help="Directory to save/restore state in")
2338
2804
parser.add_argument("--foreground", action="store_true",
2339
2805
help="Run in foreground", default=None)
2806
parser.add_argument("--no-zeroconf", action="store_false",
2807
dest="zeroconf", help="Do not use Zeroconf",
2808
default=None)
2340
2809
2341
2810
options = parser.parse_args()
2342
2811
2351
2820
"port": "",
2352
2821
"debug": "False",
2353
2822
"priority":
2354
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:+SIGN-RSA-SHA224:+SIGN-RSA-RMD160",
2823
"SECURE256:!CTYPE-X.509:+CTYPE-OPENPGP:!RSA"
2824
":+SIGN-DSA-SHA256",
2355
2825
"servicename": "Mandos",
2356
2826
"use_dbus": "True",
2357
2827
"use_ipv6": "True",
2360
2830
"socket": "",
2361
2831
"statedir": "/var/lib/mandos",
2362
2832
"foreground": "False",
2363
}
2833
"zeroconf": "True",
2834
}
2364
2835
2365
2836
# Parse config file for server-global settings
2366
2837
server_config = configparser.SafeConfigParser(server_defaults)
2367
2838
del server_defaults
2368
server_config.read(os.path.join(options.configdir,
2369
"mandos.conf"))
2839
server_config.read(os.path.join(options.configdir, "mandos.conf"))
2370
2840
# Convert the SafeConfigParser object to a dict
2371
2841
server_settings = server_config.defaults()
2372
2842
# Use the appropriate methods on the non-string config options
2390
2860
# Override the settings from the config file with command line
2391
2861
# options, if set.
2392
2862
for option in ("interface", "address", "port", "debug",
2393
"priority", "servicename", "configdir",
2394
"use_dbus", "use_ipv6", "debuglevel", "restore",
2395
"statedir", "socket", "foreground"):
2863
"priority", "servicename", "configdir", "use_dbus",
2864
"use_ipv6", "debuglevel", "restore", "statedir",
2865
"socket", "foreground", "zeroconf"):
2396
2866
value = getattr(options, option)
2397
2867
if value is not None:
2398
2868
server_settings[option] = value
2399
2869
del options
2400
2870
# Force all strings to be unicode
2401
2871
for option in server_settings.keys():
2402
if type(server_settings[option]) is str:
2403
server_settings[option] = unicode(server_settings[option])
2872
if isinstance(server_settings[option], bytes):
2873
server_settings[option] = (server_settings[option]
2874
.decode("utf-8"))
2404
2875
# Force all boolean options to be boolean
2405
2876
for option in ("debug", "use_dbus", "use_ipv6", "restore",
2406
"foreground"):
2877
"foreground", "zeroconf"):
2407
2878
server_settings[option] = bool(server_settings[option])
2408
2879
# Debug implies foreground
2409
2880
if server_settings["debug"]:
2412
2883
2413
2884
##################################################################
2414
2885
2886
if (not server_settings["zeroconf"]
2887
and not (server_settings["port"]
2888
or server_settings["socket"] != "")):
2889
parser.error("Needs port or socket to work without Zeroconf")
2890
2415
2891
# For convenience
2416
2892
debug = server_settings["debug"]
2417
2893
debuglevel = server_settings["debuglevel"]
2420
2896
stored_state_path = os.path.join(server_settings["statedir"],
2421
2897
stored_state_file)
2422
2898
foreground = server_settings["foreground"]
2899
zeroconf = server_settings["zeroconf"]
2423
2900
2424
2901
if debug:
2425
2902
initlogger(debug, logging.DEBUG)
2431
2908
initlogger(debug, level)
2432
2909
2433
2910
if server_settings["servicename"] != "Mandos":
2434
syslogger.setFormatter(logging.Formatter
2435
('Mandos ({0}) [%(process)d]:'
2436
' %(levelname)s: %(message)s'
2437
.format(server_settings
2438
["servicename"])))
2911
syslogger.setFormatter(
2912
logging.Formatter('Mandos ({}) [%(process)d]:'
2913
' %(levelname)s: %(message)s'.format(
2914
server_settings["servicename"])))
2439
2915
2440
2916
# Parse config file with clients
2441
2917
client_config = configparser.SafeConfigParser(Client
2446
2922
global mandos_dbus_service
2447
2923
mandos_dbus_service = None
2448
2924
2449
tcp_server = MandosServer((server_settings["address"],
2450
server_settings["port"]),
2451
ClientHandler,
2452
interface=(server_settings["interface"]
2453
or None),
2454
use_ipv6=use_ipv6,
2455
gnutls_priority=
2456
server_settings["priority"],
2457
use_dbus=use_dbus,
2458
socketfd=(server_settings["socket"]
2459
or None))
2925
socketfd = None
2926
if server_settings["socket"] != "":
2927
socketfd = server_settings["socket"]
2928
tcp_server = MandosServer(
2929
(server_settings["address"], server_settings["port"]),
2930
ClientHandler,
2931
interface=(server_settings["interface"] or None),
2932
use_ipv6=use_ipv6,
2933
gnutls_priority=server_settings["priority"],
2934
use_dbus=use_dbus,
2935
socketfd=socketfd)
2460
2936
if not foreground:
2461
2937
pidfilename = "/run/mandos.pid"
2462
2938
if not os.path.isdir("/run/."):
2463
2939
pidfilename = "/var/run/mandos.pid"
2464
2940
pidfile = None
2465
2941
try:
2466
pidfile = open(pidfilename, "w")
2942
pidfile = codecs.open(pidfilename, "w", encoding="utf-8")
2467
2943
except IOError as e:
2468
2944
logger.error("Could not open file %r", pidfilename,
2469
2945
exc_info=e)
2470
2946
2471
for name in ("_mandos", "mandos", "nobody"):
2947
for name, group in (("_mandos", "_mandos"),
2948
("mandos", "mandos"),
2949
("nobody", "nogroup")):
2472
2950
try:
2473
2951
uid = pwd.getpwnam(name).pw_uid
2474
gid = pwd.getpwnam(name).pw_gid
2952
gid = pwd.getpwnam(group).pw_gid
2475
2953
break
2476
2954
except KeyError:
2477
2955
continue
2481
2959
try:
2482
2960
os.setgid(gid)
2483
2961
os.setuid(uid)
2962
if debug:
2963
logger.debug("Did setuid/setgid to {}:{}".format(uid,
2964
gid))
2484
2965
except OSError as error:
2966
logger.warning("Failed to setuid/setgid to {}:{}: {}"
2967
.format(uid, gid, os.strerror(error.errno)))
2485
2968
if error.errno != errno.EPERM:
2486
2969
raise
2487
2970
2490
2973
2491
2974
# "Use a log level over 10 to enable all debugging options."
2492
2975
# - GnuTLS manual
2493
gnutls.library.functions.gnutls_global_set_log_level(11)
2976
gnutls.global_set_log_level(11)
2494
2977
2495
@gnutls.library.types.gnutls_log_func
2978
@gnutls.log_func
2496
2979
def debug_gnutls(level, string):
2497
2980
logger.debug("GnuTLS: %s", string[:-1])
2498
2981
2499
(gnutls.library.functions
2500
.gnutls_global_set_log_function(debug_gnutls))
2982
gnutls.global_set_log_function(debug_gnutls)
2501
2983
2502
2984
# Redirect stdin so all checkers get /dev/null
2503
2985
null = os.open(os.devnull, os.O_NOCTTY | os.O_RDWR)
2510
2992
# Close all input and output, do double fork, etc.
2511
2993
daemon()
2512
2994
2513
# multiprocessing will use threads, so before we use gobject we
2514
# need to inform gobject that threads will be used.
2515
gobject.threads_init()
2995
# multiprocessing will use threads, so before we use GLib we need
2996
# to inform GLib that threads will be used.
2997
GLib.threads_init()
2516
2998
2517
2999
global main_loop
2518
3000
# From the Avahi example code
2519
3001
DBusGMainLoop(set_as_default=True)
2520
main_loop = gobject.MainLoop()
3002
main_loop = GLib.MainLoop()
2521
3003
bus = dbus.SystemBus()
2522
3004
# End of Avahi example code
2523
3005
if use_dbus:
2524
3006
try:
2525
3007
bus_name = dbus.service.BusName("se.recompile.Mandos",
2526
bus, do_not_queue=True)
2527
old_bus_name = (dbus.service.BusName
2528
("se.bsnet.fukt.Mandos", bus,
2529
do_not_queue=True))
2530
except dbus.exceptions.NameExistsException as e:
3008
bus,
3009
do_not_queue=True)
3010
old_bus_name = dbus.service.BusName(
3011
"se.bsnet.fukt.Mandos", bus,
3012
do_not_queue=True)
3013
except dbus.exceptions.DBusException as e:
2531
3014
logger.error("Disabling D-Bus:", exc_info=e)
2532
3015
use_dbus = False
2533
3016
server_settings["use_dbus"] = False
2534
3017
tcp_server.use_dbus = False
2535
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
2536
service = AvahiServiceToSyslog(name =
2537
server_settings["servicename"],
2538
servicetype = "_mandos._tcp",
2539
protocol = protocol, bus = bus)
2540
if server_settings["interface"]:
2541
service.interface = (if_nametoindex
2542
(str(server_settings["interface"])))
3018
if zeroconf:
3019
protocol = avahi.PROTO_INET6 if use_ipv6 else avahi.PROTO_INET
3020
service = AvahiServiceToSyslog(
3021
name = server_settings["servicename"],
3022
servicetype = "_mandos._tcp",
3023
protocol = protocol,
3024
bus = bus)
3025
if server_settings["interface"]:
3026
service.interface = if_nametoindex(
3027
server_settings["interface"].encode("utf-8"))
2543
3028
2544
3029
global multiprocessing_manager
2545
3030
multiprocessing_manager = multiprocessing.Manager()
2564
3049
if server_settings["restore"]:
2565
3050
try:
2566
3051
with open(stored_state_path, "rb") as stored_state:
2567
clients_data, old_client_settings = (pickle.load
2568
(stored_state))
3052
if sys.version_info.major == 2:
3053
clients_data, old_client_settings = pickle.load(
3054
stored_state)
3055
else:
3056
bytes_clients_data, bytes_old_client_settings = (
3057
pickle.load(stored_state, encoding = "bytes"))
3058
### Fix bytes to strings
3059
## clients_data
3060
# .keys()
3061
clients_data = { (key.decode("utf-8")
3062
if isinstance(key, bytes)
3063
else key): value
3064
for key, value in
3065
bytes_clients_data.items() }
3066
del bytes_clients_data
3067
for key in clients_data:
3068
value = { (k.decode("utf-8")
3069
if isinstance(k, bytes) else k): v
3070
for k, v in
3071
clients_data[key].items() }
3072
clients_data[key] = value
3073
# .client_structure
3074
value["client_structure"] = [
3075
(s.decode("utf-8")
3076
if isinstance(s, bytes)
3077
else s) for s in
3078
value["client_structure"] ]
3079
# .name & .host
3080
for k in ("name", "host"):
3081
if isinstance(value[k], bytes):
3082
value[k] = value[k].decode("utf-8")
3083
## old_client_settings
3084
# .keys()
3085
old_client_settings = {
3086
(key.decode("utf-8")
3087
if isinstance(key, bytes)
3088
else key): value
3089
for key, value in
3090
bytes_old_client_settings.items() }
3091
del bytes_old_client_settings
3092
# .host
3093
for value in old_client_settings.values():
3094
if isinstance(value["host"], bytes):
3095
value["host"] = (value["host"]
3096
.decode("utf-8"))
2569
3097
os.remove(stored_state_path)
2570
3098
except IOError as e:
2571
3099
if e.errno == errno.ENOENT:
2572
logger.warning("Could not load persistent state: {0}"
2573
.format(os.strerror(e.errno)))
3100
logger.warning("Could not load persistent state:"
3101
" {}".format(os.strerror(e.errno)))
2574
3102
else:
2575
3103
logger.critical("Could not load persistent state:",
2576
3104
exc_info=e)
2577
3105
raise
2578
3106
except EOFError as e:
2579
3107
logger.warning("Could not load persistent state: "
2580
"EOFError:", exc_info=e)
3108
"EOFError:",
3109
exc_info=e)
2581
3110
2582
3111
with PGPEngine() as pgp:
2583
for client_name, client in clients_data.iteritems():
3112
for client_name, client in clients_data.items():
2584
3113
# Skip removed clients
2585
3114
if client_name not in client_settings:
2586
3115
continue
2595
3124
# For each value in new config, check if it
2596
3125
# differs from the old config value (Except for
2597
3126
# the "secret" attribute)
2598
if (name != "secret" and
2599
value != old_client_settings[client_name]
2600
[name]):
3127
if (name != "secret"
3128
and (value !=
3129
old_client_settings[client_name][name])):
2601
3130
client[name] = value
2602
3131
except KeyError:
2603
3132
pass
2604
3133
2605
3134
# Clients who has passed its expire date can still be
2606
# enabled if its last checker was successful. Clients
3135
# enabled if its last checker was successful. A Client
2607
3136
# whose checker succeeded before we stored its state is
2608
3137
# assumed to have successfully run all checkers during
2609
3138
# downtime.
2611
3140
if datetime.datetime.utcnow() >= client["expires"]:
2612
3141
if not client["last_checked_ok"]:
2613
3142
logger.warning(
2614
"disabling client {0} - Client never "
2615
"performed a successful checker"
2616
.format(client_name))
3143
"disabling client {} - Client never "
3144
"performed a successful checker".format(
3145
client_name))
2617
3146
client["enabled"] = False
2618
3147
elif client["last_checker_status"] != 0:
2619
3148
logger.warning(
2620
"disabling client {0} - Client "
2621
"last checker failed with error code {1}"
2622
.format(client_name,
2623
client["last_checker_status"]))
3149
"disabling client {} - Client last"
3150
" checker failed with error code"
3151
" {}".format(
3152
client_name,
3153
client["last_checker_status"]))
2624
3154
client["enabled"] = False
2625
3155
else:
2626
client["expires"] = (datetime.datetime
2627
.utcnow()
2628
+ client["timeout"])
3156
client["expires"] = (
3157
datetime.datetime.utcnow()
3158
+ client["timeout"])
2629
3159
logger.debug("Last checker succeeded,"
2630
" keeping {0} enabled"
2631
.format(client_name))
3160
" keeping {} enabled".format(
3161
client_name))
2632
3162
try:
2633
client["secret"] = (
2634
pgp.decrypt(client["encrypted_secret"],
2635
client_settings[client_name]
2636
["secret"]))
3163
client["secret"] = pgp.decrypt(
3164
client["encrypted_secret"],
3165
client_settings[client_name]["secret"])
2637
3166
except PGPError:
2638
3167
# If decryption fails, we use secret from new settings
2639
logger.debug("Failed to decrypt {0} old secret"
2640
.format(client_name))
2641
client["secret"] = (
2642
client_settings[client_name]["secret"])
3168
logger.debug("Failed to decrypt {} old secret".format(
3169
client_name))
3170
client["secret"] = (client_settings[client_name]
3171
["secret"])
2643
3172
2644
3173
# Add/remove clients based on new changes made to config
2645
3174
for client_name in (set(old_client_settings)
2650
3179
clients_data[client_name] = client_settings[client_name]
2651
3180
2652
3181
# Create all client objects
2653
for client_name, client in clients_data.iteritems():
3182
for client_name, client in clients_data.items():
2654
3183
tcp_server.clients[client_name] = client_class(
2655
name = client_name, settings = client,
3184
name = client_name,
3185
settings = client,
2656
3186
server_settings = server_settings)
2657
3187
2658
3188
if not tcp_server.clients:
2660
3190
2661
3191
if not foreground:
2662
3192
if pidfile is not None:
3193
pid = os.getpid()
2663
3194
try:
2664
3195
with pidfile:
2665
pid = os.getpid()
2666
pidfile.write(str(pid) + "\n".encode("utf-8"))
3196
print(pid, file=pidfile)
2667
3197
except IOError:
2668
3198
logger.error("Could not write to file %r with PID %d",
2669
3199
pidfilename, pid)
2670
3200
del pidfile
2671
3201
del pidfilename
2672
3202
2673
signal.signal(signal.SIGHUP, lambda signum, frame: sys.exit())
2674
signal.signal(signal.SIGTERM, lambda signum, frame: sys.exit())
3203
for termsig in (signal.SIGHUP, signal.SIGTERM):
3204
GLib.unix_signal_add(GLib.PRIORITY_HIGH, termsig,
3205
lambda: main_loop.quit() and False)
2675
3206
2676
3207
if use_dbus:
2677
@alternate_dbus_interfaces({"se.recompile.Mandos":
2678
"se.bsnet.fukt.Mandos"})
2679
class MandosDBusService(DBusObjectWithProperties):
3208
3209
@alternate_dbus_interfaces(
3210
{ "se.recompile.Mandos": "se.bsnet.fukt.Mandos" })
3211
class MandosDBusService(DBusObjectWithObjectManager):
2680
3212
"""A D-Bus proxy object"""
3213
2681
3214
def __init__(self):
2682
3215
dbus.service.Object.__init__(self, bus, "/")
3216
2683
3217
_interface = "se.recompile.Mandos"
2684
3218
2685
@dbus_interface_annotations(_interface)
2686
def _foo(self):
2687
return { "org.freedesktop.DBus.Property"
2688
".EmitsChangedSignal":
2689
"false"}
2690
2691
3219
@dbus.service.signal(_interface, signature="o")
2692
3220
def ClientAdded(self, objpath):
2693
3221
"D-Bus signal"
2698
3226
"D-Bus signal"
2699
3227
pass
2700
3228
3229
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3230
"true"})
2701
3231
@dbus.service.signal(_interface, signature="os")
2702
3232
def ClientRemoved(self, objpath, name):
2703
3233
"D-Bus signal"
2704
3234
pass
2705
3235
3236
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3237
"true"})
2706
3238
@dbus.service.method(_interface, out_signature="ao")
2707
3239
def GetAllClients(self):
2708
3240
"D-Bus method"
2709
return dbus.Array(c.dbus_object_path
2710
for c in
2711
tcp_server.clients.itervalues())
3241
return dbus.Array(c.dbus_object_path for c in
3242
tcp_server.clients.values())
2712
3243
3244
@dbus_annotations({"org.freedesktop.DBus.Deprecated":
3245
"true"})
2713
3246
@dbus.service.method(_interface,
2714
3247
out_signature="a{oa{sv}}")
2715
3248
def GetAllClientsWithProperties(self):
2716
3249
"D-Bus method"
2717
3250
return dbus.Dictionary(
2718
((c.dbus_object_path, c.GetAll(""))
2719
for c in tcp_server.clients.itervalues()),
3251
{ c.dbus_object_path: c.GetAll(
3252
"se.recompile.Mandos.Client")
3253
for c in tcp_server.clients.values() },
2720
3254
signature="oa{sv}")
2721
3255
2722
3256
@dbus.service.method(_interface, in_signature="o")
2723
3257
def RemoveClient(self, object_path):
2724
3258
"D-Bus method"
2725
for c in tcp_server.clients.itervalues():
3259
for c in tcp_server.clients.values():
2726
3260
if c.dbus_object_path == object_path:
2727
3261
del tcp_server.clients[c.name]
2728
3262
c.remove_from_connection()
2729
# Don't signal anything except ClientRemoved
3263
# Don't signal the disabling
2730
3264
c.disable(quiet=True)
2731
# Emit D-Bus signal
2732
self.ClientRemoved(object_path, c.name)
3265
# Emit D-Bus signal for removal
3266
self.client_removed_signal(c)
2733
3267
return
2734
3268
raise KeyError(object_path)
2735
3269
2736
3270
del _interface
3271
3272
@dbus.service.method(dbus.OBJECT_MANAGER_IFACE,
3273
out_signature = "a{oa{sa{sv}}}")
3274
def GetManagedObjects(self):
3275
"""D-Bus method"""
3276
return dbus.Dictionary(
3277
{ client.dbus_object_path:
3278
dbus.Dictionary(
3279
{ interface: client.GetAll(interface)
3280
for interface in
3281
client._get_all_interface_names()})
3282
for client in tcp_server.clients.values()})
3283
3284
def client_added_signal(self, client):
3285
"""Send the new standard signal and the old signal"""
3286
if use_dbus:
3287
# New standard signal
3288
self.InterfacesAdded(
3289
client.dbus_object_path,
3290
dbus.Dictionary(
3291
{ interface: client.GetAll(interface)
3292
for interface in
3293
client._get_all_interface_names()}))
3294
# Old signal
3295
self.ClientAdded(client.dbus_object_path)
3296
3297
def client_removed_signal(self, client):
3298
"""Send the new standard signal and the old signal"""
3299
if use_dbus:
3300
# New standard signal
3301
self.InterfacesRemoved(
3302
client.dbus_object_path,
3303
client._get_all_interface_names())
3304
# Old signal
3305
self.ClientRemoved(client.dbus_object_path,
3306
client.name)
2737
3307
2738
3308
mandos_dbus_service = MandosDBusService()
2739
3309
2740
3310
def cleanup():
2741
3311
"Cleanup function; run on exit"
2742
service.cleanup()
3312
if zeroconf:
3313
service.cleanup()
2743
3314
2744
3315
multiprocessing.active_children()
2745
3316
wnull.close()
2751
3322
# removed/edited, old secret will thus be unrecovable.
2752
3323
clients = {}
2753
3324
with PGPEngine() as pgp:
2754
for client in tcp_server.clients.itervalues():
3325
for client in tcp_server.clients.values():
2755
3326
key = client_settings[client.name]["secret"]
2756
3327
client.encrypted_secret = pgp.encrypt(client.secret,
2757
3328
key)
2759
3330
2760
3331
# A list of attributes that can not be pickled
2761
3332
# + secret.
2762
exclude = set(("bus", "changedstate", "secret",
2763
"checker", "server_settings"))
2764
for name, typ in (inspect.getmembers
2765
(dbus.service.Object)):
3333
exclude = { "bus", "changedstate", "secret",
3334
"checker", "server_settings" }
3335
for name, typ in inspect.getmembers(dbus.service
3336
.Object):
2766
3337
exclude.add(name)
2767
3338
2768
3339
client_dict["encrypted_secret"] = (client
2775
3346
del client_settings[client.name]["secret"]
2776
3347
2777
3348
try:
2778
with (tempfile.NamedTemporaryFile
2779
(mode='wb', suffix=".pickle", prefix='clients-',
2780
dir=os.path.dirname(stored_state_path),
2781
delete=False)) as stored_state:
2782
pickle.dump((clients, client_settings), stored_state)
2783
tempname=stored_state.name
3349
with tempfile.NamedTemporaryFile(
3350
mode='wb',
3351
suffix=".pickle",
3352
prefix='clients-',
3353
dir=os.path.dirname(stored_state_path),
3354
delete=False) as stored_state:
3355
pickle.dump((clients, client_settings), stored_state,
3356
protocol = 2)
3357
tempname = stored_state.name
2784
3358
os.rename(tempname, stored_state_path)
2785
3359
except (IOError, OSError) as e:
2786
3360
if not debug:
2789
3363
except NameError:
2790
3364
pass
2791
3365
if e.errno in (errno.ENOENT, errno.EACCES, errno.EEXIST):
2792
logger.warning("Could not save persistent state: {0}"
3366
logger.warning("Could not save persistent state: {}"
2793
3367
.format(os.strerror(e.errno)))
2794
3368
else:
2795
3369
logger.warning("Could not save persistent state:",
2801
3375
name, client = tcp_server.clients.popitem()
2802
3376
if use_dbus:
2803
3377
client.remove_from_connection()
2804
# Don't signal anything except ClientRemoved
3378
# Don't signal the disabling
2805
3379
client.disable(quiet=True)
3380
# Emit D-Bus signal for removal
2806
3381
if use_dbus:
2807
# Emit D-Bus signal
2808
mandos_dbus_service.ClientRemoved(client
2809
.dbus_object_path,
2810
client.name)
3382
mandos_dbus_service.client_removed_signal(client)
2811
3383
client_settings.clear()
2812
3384
2813
3385
atexit.register(cleanup)
2814
3386
2815
for client in tcp_server.clients.itervalues():
3387
for client in tcp_server.clients.values():
2816
3388
if use_dbus:
2817
# Emit D-Bus signal
2818
mandos_dbus_service.ClientAdded(client.dbus_object_path)
3389
# Emit D-Bus signal for adding
3390
mandos_dbus_service.client_added_signal(client)
2819
3391
# Need to initiate checking of clients
2820
3392
if client.enabled:
2821
3393
client.init_checker()
2824
3396
tcp_server.server_activate()
2825
3397
2826
3398
# Find out what port we got
2827
service.port = tcp_server.socket.getsockname()[1]
3399
if zeroconf:
3400
service.port = tcp_server.socket.getsockname()[1]
2828
3401
if use_ipv6:
2829
3402
logger.info("Now listening on address %r, port %d,"
2830
3403
" flowinfo %d, scope_id %d",
2836
3409
#service.interface = tcp_server.socket.getsockname()[3]
2837
3410
2838
3411
try:
2839
# From the Avahi example code
2840
try:
2841
service.activate()
2842
except dbus.exceptions.DBusException as error:
2843
logger.critical("D-Bus Exception", exc_info=error)
2844
cleanup()
2845
sys.exit(1)
2846
# End of Avahi example code
3412
if zeroconf:
3413
# From the Avahi example code
3414
try:
3415
service.activate()
3416
except dbus.exceptions.DBusException as error:
3417
logger.critical("D-Bus Exception", exc_info=error)
3418
cleanup()
3419
sys.exit(1)
3420
# End of Avahi example code
2847
3421
2848
gobject.io_add_watch(tcp_server.fileno(), gobject.IO_IN,
2849
lambda *args, **kwargs:
2850
(tcp_server.handle_request
2851
(*args[2:], **kwargs) or True))
3422
GLib.io_add_watch(tcp_server.fileno(), GLib.IO_IN,
3423
lambda *args, **kwargs:
3424
(tcp_server.handle_request
3425
(*args[2:], **kwargs) or True))
2852
3426
2853
3427
logger.debug("Starting main loop")
2854
3428
main_loop.run()
2864
3438
# Must run before the D-Bus bus name gets deregistered
2865
3439
cleanup()
2866
3440
3441
2867
3442
if __name__ == '__main__':
2868
3443
main()
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0